Dont worry professor you will not lose a single subscriber Indians will never mind being incorrect Because being incorrect is first step in learning :)
At this age.. You are still reading physics.. That itself is an inspiration to all of us. Every physicist is always a student of physics. Hat's off to you and Mr. HCVerma.
Teaching , problem solving and problem creation are different cups of tea . No shame when we can't solve a problem created by someone else. Learning honestly from that failure makes you dig deeper into the beauty of physics 🙂
Every person who discovers something new faces failure. Physics is a subject with infinite possibilities and discoveries. Both Professors are the best all over the world. Both of them are the true lovers of Physics and their love towards physics takes them to new thoughts and discoveries. Everyone faces contradictions. It's just like Huygens correcting the Newton's Corpuscle theory. Professors you are all, the best an inspiration that have made me fall in love with physics. -To Professor Lewin, Lots of Love from India -To Professor Verma, Our love was always there with you. Thank you for guiding me and many other souls towards the heavenly world of physics and helping me dive deep in!! Thank You
I just want point out here that JEE ADVANCED problems are few of the coolest ones in the world. Even many professors and scientists have a hard time solving these problems. The worst part is that 12th grade students are expected to solve these problems.
Respect to you Sir- No Comments on Concept of Physics by HC Verma.. I am not Qualified to comment on it. But I truely love the way you TEACH physics and help us to understand how Nature works..Thank you Professor..
Sir sir sir ! Sir you are so white , see i am brown from koltaka , basically an honorary white , i am writing to inform you that we are proud to be first people to become colonised when British came to India ,....we gave up without fighting ! i am proud bongali from that land!
Sir, just now found your channel and subscribed..Sir,your wholehearted love towards physics is infinite💖 You shall always stay healthy and happy with your family sir .. Lots n lots of love and respect from India🇮🇳💝
yes , also its nothing big , our sir tells us many times that this derivation is given wrong in hcv , to make it easy , though result is correct , it made some assumptions to simplify an otherwise lengthy proof
Prof Lewin you will never loose 1 million indian subscribers. We love physics and it's not about lewin or verma. Human beings can make mistakes. And we should learn from each other. I Love both of you as your lectures helped me to learn a lot in physics. LOVE FROM INDIA
I bet you are going to get so many more Indian subscribers or friends after this.. You won't lose a single one Professor. We all have great respect for both of you.. Few mistakes cannot define legacy of H. C. Verma Sir.. Long live Professor ❤❤❤❤
We should appreciate the honesty of people who accept that they cannot solve this problem. Some great people are so honest they accept that cannot solve some undergraduate problems. We need to appreciate them. It is very rare to find such people.
@@srsanderson4932 it is, the interaction of magnetic fields with superconductors is taught in final year undergrad physics. The question itself was not that tricky if you understood the Miesner effect and the details of how it is generated. I was shocked that many physicists could not even solve it !!
@@nobel.z4266 there are many subfields in physics, they may be physicists in very different fields that have got nothing to do with E&M and haven't really touched the subject in a long time. And they might also be experimental physicist on top of that
So is Irodov's. I don't think any IITian ever happened without taking a look at Irodov's book at least once. But that doesn't mean Sir Irodov should have called out names and declared them as "wrong". Calling others wrong is distasteful when the matter under discussion is still debatable.
I agree with you but you didn't have to write India in the comment, you aren't respecting him.because you are from India, it's just thst you respect him nonetheless
I admire you as a teacher, friend and human. Thank you for your videos, for the feeling of joy you create when I watch these videos. Never forget you are a friend. You are not alone!
i discovered you today and im already enchanted by your presence, i love physics but its always been a very tough subject for me. i hope by watching your videos i will get better at it. thankyou so much sir.
Dear Sir I have been student of HC Verma sir via. his online coureses and I have heard most of his talks. I know that being wrong will olny excite him even more and increase his love for physics and in no way can it upset him. For me it's vey good experiance that scientists around the globe are taking part in this unique and beautiful pursuit of physics and I am so glad to be part of it. For the first time I feel integrated part of Scientist's community and it's only been possible because of your insightful videos. Thank You so much for this ❤❤❤❤🙏🙏🙏
Respected Sir, As an Indian student it's your Duty as a physics teacher to do corrections whether it's a teacher or students and you done it ! EXCELLENT............ 👍Great job sir For the love of physics ❤️❤️❤️
I started watching your videos when I was in 11th grade, and you have helped me reach one of India's most prestigious university (I do not want to name it here), and I am very thankful to you Sir, from the bottom of my heart, you are one of the best teachers I ever came across. I hope I get the chance to meet you in person some day and get a signed copy of your book "For the Love of Physics"
4:48 Sir, I have a question: According to you, at the surface of the superconductor, there is a current and therefore it gives rise to magnetic field and that can cancel out incoming varying magnetic field. However, if we change direction of incoming magnetic field (suppose previously the magnetic field was growing in intensity in n type and now incoming magnetic field is increasing in s type, i.e., you are bringing the s pole closer to the loop instead of the n pole), is it be still opossed by the same current that was present at the surface of the superconductor? If yes, then why?
@@swapnilorke no need to bully someone cause they asked a question.Apparently 63 people are interested in his problem as it shows as likes.Someone may not know or understand anything just because u understood the same thing doens't make u any better
That's a good argumentative question dr. anupam, but I guess your question answers itself, read again your question carefully and you will find it. If not, reply me here but i guess you will figure it out yourself.
Even Einstein did mistake when he did not accept the implication of his own equations about the expanding universe! Greats will be Greats. We love both of you "Walter Lewin" and "H.C.Verma" ❤️
not accepting unproven implications is not a mistake. Einstein did however publish his cosmological constant as an unproven possibility and that was precient
No single Indian is going to un follow you Sir... Discussing and correcting knowledge is India's fundamental traditions which is known as Shastrarth. So we admire your courage and intention. Thankyou 🙏🙏🙏😊
@@lecturesbywalterlewin.they9259 Thankyou very much Sir for your kind reply. Your reply is a like blessings for me.🙏🙏🙏 May You Live Long. Love and Respect😊
@@neyazahmad76Well, guess what, we do! You'll never hear a science teacher saying that their approach is the only right approach to a question, there can be multiple ways to get to an answer, one might be better than the other.
In Physics all approaches are never absolutely correct. There's always some room for something better. Honest physicists don't believe in being the "best" but believe in being "better". Its because of this unbiased mindset of physicsists, physics develops. Sir, you both are giants in the community of Physics teachers. We love you both.
Hi somebody helps me to understand it I didn't understand, superconducting conducts electricity without resistance than why he is there is no electricity on the surface of the super conductor
Sir, we Indians respect our teachers and professors very much. You, professor Verma, or be it any other teacher, we are never gonna hate someone who is doing a brilliant job of educating people. Being wrong is no humiliation for us. We accept our mistakes very politely and try to make ourselves better.
Actually sir, you just earned me as a subscriber through your such pure love for physics and stating out facts instead of thinking of losing your "indian fan following" hc sir and you both will forever be my mentors 🙏❤
No one is perfect in this world. Not even Newton who was further corrected by Einstein. It is not going to happen of losing 1 million Indian students. Bcoz everyone loves you and your way of explanation including your humbleness. I'm always feeling proud that I've got such a big opportunity in my life to study with your lectures. After studying with your lectures...the feeling is just like what your Channel's last words are. ❤️😍💯
Always great to see you Sir. It is important that we see thing from the perspective of Physics and not from who has done it. Humans err and a wise person is he who accepts his mistakes and learns from it.A true Physics lover will never have any negative feelings for you or for H.C Verma Sir. I will surely read about this phenomenon and its details.
By listening these conversations i felt proud of the physics that it is inventing everytime and the statement are getting perfect day by day . Glad and amazed after looking dear sir ,their passion in a way his life is the physics and i proud to be his student.and i wanna be like him 😅
This video earned you 1 more Indian subscriber. Beauty of Science fraternity is that scientists do love being corrected. Rutherford who proved JJ Thompson's atomic model wrong, was indeed Thompson's student. Prof Verma is an excellent teacher, and all great teachers continue being a better student throughout their lives. Good to know that Physics have connected people of different countries together. Regards.
@@lecturesbywalterlewin.they9259 sir all students who are dedicated towards study, respect you a lot. Lots of love from India. We all love u a lot. Hats off to you
You aren't losing any one of the Indian sub sir. Actually I would love if you and HC Verma sir make video together debating over those questions and removing all the misconceptions from our minds.
I did not see that coming, what a beautiful and simple solution to a beautiful and simple question! Looking forward to next weeks problem. Thanks again for sharing with us. And also, I think the new haircut looks nice.
Professor, I was wondering what would happen if we could do this experiment in vaccum (though moving the magnet would be hard)? Without air contact at the coil surface, would there be any resistance to allow an EMF (and current)?
we'll never leave you Professor..... and I'm really very much pleased to see that you made a video on why Professor Verma is wrong for the sake of your students..... take care Professor stay safe :)
U just add 1 indian subscriber sir . science is all about arguing things even Newton himself was not correct but it can't stop him from becoming a genius .we love you and also Verma sir 😍😊😊
@@lecturesbywalterlewin.they9259 I am your big fan sir. I appreciate the way you work for physics and convert haters into lovers of physics. Hats off to you
Leaving his age behind he's doing what he loves, and that's what is one of the most inspirational thing about him.... Hope we will always get teachers like him... Thank you from the bottom of my heart sir 😊💜
We never mind mistakes ....bcoz mistakes are the reason he is trying ...and HC Verma is indian pride .....🙏😎🇮🇳 He don't have all the gadgets to perform the experiments he let his students to make the instruments ...all the instruments he used for a experiment is also made by him ....he is such talented man .... We love him ~❤️ And I am proud of him .....❤️😊 He is one of the best leaner and professor ❤️
Solving a problem right or wrong doesn't decide the quality of a professor. No one can be correct in all fields of science. We can't lose your classes as well as prof H C Verma's. Both are two great contemporary physics professors on the globe.♥️ and revere both of you from the core of my heart.
Before you decide to buy a book from me *I strongly suggest you get a free copy using the pdf file.* fiisikis.weebly.com/uploads/5/4/9/3/54939617/for_the_love_of_physics.pdf You should also consider to buy my book at amazon in your country. *I have been told that in India you can get my book from Amazon and Flipkart for $4.50* These books do not contain the 15 colored photo index (that's why they are so cheap). If you can afford it, of course, I am willing to send you a signed copy of my book with *a special note for you + a signed picture of me, which will also have your name on it,* but the price is high as I pay 30% tax here in the US of your payment. Postage for me is also high (e.g., India $35). Ofcoz the book that I send you contains the photo index. Your total costs for 1 paperback copy: US $40; Europe, South America, Brazil, Canada, Pakistan, Nepal, Bangladesh Tanzania & India $65; Middle East & Asia: Japan, Philippines, China, Thailand & Australia $80. I make zero money on these sales, I sell them for what they cost me. You should transfer the money to my PayPal account (see below). *Since we are friends, please mark "family and friends", PayPal will then not charge me a 5% fee* and please let me also know in PayPal your name and complete address and *which name I should use for my note in your book and on my picture.* *For those of you who only want a signed copy of the picture of me, swinging from the pendulum,* with your name on it as well, it will cost you *$10 for 1 copy* (that includes postage). It's the same price for all countries. *You should send me on PayPal your complete address and the name you want me to write on the picture.* Please transfer the $12 to *my PayPal account which is* lewin-physics@physics.comcastbiz.net. *Keep in mind that you must first enter PayPal and then my account.*
"Laws of Physics are invariant in every frame of references" -- I'm saying it in a metaphorical way. Sir I have a huge respect for you from core of my heart, and for me, HCV is a man I Love. Both of two are the inspiration for millions of people over the globe. Huge respect and LOVE form INDIA sir 🙏
This ‘simple to state problem’ has caused me some ‘brain pain’. I have often wondered about the role of gravity and temperature on electron flow and at what point does a super conductor become a super conductor. I have revisited your lectures regarding Faraday and Kirchhoff and I hear your wise words regarding Faraday. This is why I love Physics. Physics works and whether you can prove it with mathematics or not Physics is not bothered.
How can a superconducting material have a resistive surface? Sir in your question you mentioned a superconducting coil so as per the question we can say that the whole superconducting coil is having 0 resistance.
Basically in HC Verma sir's solution he mentioned that current will be in superconductor but actually it is just on the surface and not inside the superconductor. All he has to mention was tha current is on surface. Well it was just amazing question for the understating, thanks for your time to come up with this.
This was the competition/culture in earlier days when scientists or mathematicians would give questions in envelope to solve, I love how Sir Walter is reviveing the culture. Among the professors nd physicists 🙂🙂🙂
Namste Sir Long time since I last had talked with you on UA-cam comments section. Happy to share with you I am currently studying in IIT Guwahati. Have deep gratitude for your free videos that made physics easy for me. Thanks a lot again sir 🙏🏻
That's a way to learn physics. Pointing out problems in theories and solutions is what makes physics more interesting as it helps to understand reason behind the phenomenon more clearly. Thank you sir.
Sir so if there is an electric field outside the superconductor or on the surface of the superconductor there must be a change in magnetic flux according to Faraday's law but here the net magnetic field is 0 which is constant. So does it violate Faraday's law of induction?
Hey professor can you someday make a video on Mould effect/Chain Fountain, recently there has been a confusing dispute going on among few Science UA-camrs on that topic.
Indians never feel ashame of being wrong if somebody correct them... Rather we appreciate if we are wrong and people correct us. Hats of to you such an intellect person you are.
Being in 11th I watch your lecture Sometime I understand sometime not but that's not matter . We love you ❤ India love you ❤ Mistakes can done by every humans Lot of respect from India,❤❤❤❤
What can we learn:- Mistakes don't make u a loser Instead they are proof that u tried hard Even great personalities commit mistake But they look it as an opportunity to learn what went wrong So dont stress if u fail
We Indians believe in karma which inturn means giving one's best shot.It speaks a lot about HC Verma sir when you exclusively dedicate 8 minutes of your precious time. We love you all trio( your excellence Walter Sir, Physics गुरुदेव HC Verma and physics)
You will gain more subscriber after this video professor. We are Indian and our heart is so big, and we live you as much we love prof. Verma. Don't worry.
I'm a nine grade student from india(a small village), but I still like watching videos of high physics. Though I don't understand those concept as like my brothers and sisters who read in 11and 12.sir you, alakh sir and khan sir have always made me love physics. Lewin sir didn't say that that verma sir is wrong instead he's trying to uncover the wrongs to help humankind through physics. ❤
5:20 we dont even hold the position to question the legitimacy of their argument as they have devoted their entire life to physics and we are just a baby born having just started to learn physics.sir dont worry smart students know that questioning your argument is a skill that is beyond our boundaries in physics and we in no way are close to doing it yet
We are very grateful you explained us the concept so beautifully. We respect you for your immense knowledge and no you are not losing your 1 million subscribers.
Sir, thanks so much for finally telling us the solution. Doesn't matter it's sir Lewin, verma or anyone else. Physics is a beauty... Just to be loved and appreciated.
I am a 9th grader & I started watching your videos & lectures from 8th grade & started watching HC Verma video lectures from the beginning of 9th. Both of you are amazing!! For the love of Physics I am so glad that I found both of your channels at this early age. Never met such a great Physics teacher like you sir!! I will surely love to meet you someday. Lots of Love & respect from India. !! "Walter Lewin" & "HC Verma" are the best - for the love of Physics⚛!!
I really enjoyed this problem and it doesn’t matter who in particular is right or wrong. The fact is we are all trying to find how nature works and that’s the most important and most beautiful thing about science ❤️
Sir you are great as always. You are not proving our dearest prof. HC Verma sir wrong. It is the difference of approaches which is being conveyed to the audience by you. Immense respect for both the geniuses of our era🙏🏻. And as always,, lots of love and wishes to you from India🙏🏻
Professor, you will not lose your million subscribers because science is a field in which we make many mistakes, from Galileo's understanding of the speed of light to Maxwell's concept of the luminiferous aether. So, do not worry. 😊 Love from your Indian student.
@lecturesbywalterlewin.they9259 sir with due respect, you don't have to say thanks . Actually its us who have to thank you for teaching us many things 🕴
Well said sir not anyone always right. He sometimes made a mistake. Salute to that you are raising a voice against wrong concept which is taught by not onyl professor Verma but also by many professors.
I don't even recollect physics anymore. I come here to just watch you. Love from India. Intellectual honesty is needed in science. If you try to be nice, it would have made you a social/humanities professors!
I read up of some of the basic concepts for this problem. My attempt at the answer - 1. There will be no current inside the superconducting wire 2. Faraday's law doesnt apply inside, because for it to generate an induced emf - the spin of the electrons must be parallel. But the spin of electrons in a cooper pair in a superconductor are anti-parallel. So Faraday's law doesn't work inside the superconductor.. (until the Meissner state breaks down when the applied magnetic field is too strong). 3. There is no b-field inside the superconductor. For the reason stated above - the opposite spin of electrons in a Cooper pair. Hence the quote "magnetism and superconductivity are natural enemies" 4. Faraday's law only applies on the surface of the wire (where it acts as a perfect diamagnet and perfectly cancels the external field), as magnetic field decays exponentially inside the superconductor.
Thank you Dr. Lewin. So, Prof Verma missed the Meissner effect, which expels magnetic field from the body of the superconductor. I understand that, inside the coil, B=0 leading to E=0. And hence, current is 0. But, what if we are just talking about regular conductor with 0 resistance? Will it also show same property? If not then, B and E should be non-zero, and current should be infinite. But there should be zero Ohmic heat loss, and only radiation loss should be there, due to moving charges. I would love to be corrected or, given a feedback on this. Thank you.
Walter sir not proving HC Verma wrong... He is correcting their approach 🔥
That's how science works mate... Improvisation by trial and error... No one can know everything at the same time right😊
Yes
They respect eachother
Exactly
A expert can diagnosis a expert wrong ..
Love you bro for your awesome comment❤️
Dont worry professor you will not lose a single subscriber
Indians will never mind being incorrect
Because being incorrect is first step in learning :)
@@BATTINSON101 totally irrelevant to this channel. Don't post such things here
@@BATTINSON101 that idiots were PewDiePie fans
@@BATTINSON101 the same way PewDiePie = usa ..
@@BATTINSON101 True
@@BATTINSON101 that was a mass thing. Here most of the people are Students and learners who don't mind being corrected.
In science, you can't be perfect, you are always learning.
And it's an honor if such a renowned authority corrects you over your mistake.
❤️
Well said!
@are you a potato? • 150 years ago bro . Focus on studies . U think u are the only one to think of this ? It’s basic chemistry
@@hz5935 Well Said 😆 🤣 😂
@are you a potato? • 150 years ago all the best 🙌
@are you a potato? • 150 years ago grow up bro. Btw he is a physics teacher 😂😂
At this age.. You are still reading physics.. That itself is an inspiration to all of us. Every physicist is always a student of physics. Hat's off to you and Mr. HCVerma.
Teaching , problem solving and problem creation are different cups of tea . No shame when we can't solve a problem created by someone else. Learning honestly from that failure makes you dig deeper into the beauty of physics 🙂
Sir u are really Gawd
I know both of u(Ns sir and Janardhan Sir ARE GOD)
OP in the chat bois!!!
We have our king here🙏🏻
Hello sir ,how are you !!
Sir I also want to improve my Physics for jee any suggestions please
Sir, I like your videos. They are good stuff for advanced and olympiads. 👍
It's not at all upsetting as physics discussions should not be biased. It was a very good discussion.
Every person who discovers something new faces failure. Physics is a subject with infinite possibilities and discoveries. Both Professors are the best all over the world. Both of them are the true lovers of Physics and their love towards physics takes them to new thoughts and discoveries. Everyone faces contradictions. It's just like Huygens correcting the Newton's Corpuscle theory. Professors you are all, the best an inspiration that have made me fall in love with physics.
-To Professor Lewin, Lots of Love from India
-To Professor Verma, Our love was always there with you. Thank you for guiding me and many other souls towards the heavenly world of physics and helping me dive deep in!!
Thank You
I just want point out here that JEE ADVANCED problems are few of the coolest ones in the world. Even many professors and scientists have a hard time solving these problems. The worst part is that 12th grade students are expected to solve these problems.
@@vnever9078Professors and Scientists don't have a hard time solving them.
Respect to you Sir-
No Comments on Concept of Physics by HC Verma.. I am not Qualified to comment on it. But I truely love the way you TEACH physics and help us to understand how Nature works..Thank you Professor..
All the best
Sir sir sir ! Sir you are so white , see i am brown from koltaka , basically an honorary white , i am writing to inform you that we are proud to be first people to become colonised when British came to India ,....we gave up without fighting ! i am proud bongali from that land!
@@manh9105 The hell man
what the hell is wrong with u ? @@manh9105
@@manh9105😂
Sir, just now found your channel and subscribed..Sir,your wholehearted love towards physics is infinite💖
You shall always stay healthy and happy with your family sir ..
Lots n lots of love and respect from India🇮🇳💝
Professor, it is completely fine , no incorrect solution will affect our friendship
yes , also its nothing big , our sir tells us many times that this derivation is given wrong in hcv , to make it easy , though result is correct , it made some assumptions to simplify an otherwise lengthy proof
magnetic field on the axial line of a ring , is the derivation correct ?
BINOD
,
,
@@divyanshu9006 ya i agree like electric field due to dipole and bio savart's law are complicated as compared my teacher's proof
Prof Lewin you will never loose 1 million indian subscribers. We love physics and it's not about lewin or verma. Human beings can make mistakes. And we should learn from each other. I Love both of you as your lectures helped me to learn a lot in physics. LOVE FROM INDIA
You are 10000% correct.…… I agree with you 😘👍🏻
Yes bro I also like your comment
Not all 1 million subscribers gonna be us indian tho
@@asifbarlaskar1159 it's all indians... Go to comment ratio you'll learn
@@devrajk715 Just check out the ratio of Viewers and Commenters hope you will find your Answers.
This is the beauty of Physics...even renowned professors have to sometimes think and accept their flaws
I bet you are going to get so many more Indian subscribers or friends after this.. You won't lose a single one Professor. We all have great respect for both of you.. Few mistakes cannot define legacy of H. C. Verma Sir.. Long live Professor ❤❤❤❤
Hope so
We should appreciate the honesty of people who accept that they cannot solve this problem. Some great people are so honest they accept that cannot solve some undergraduate problems. We need to appreciate them. It is very rare to find such people.
It wasn't undergraduate problem. It seems like undergraduate problem because we are not digging into mathematics
@@srsanderson4932 it is, the interaction of magnetic fields with superconductors is taught in final year undergrad physics. The question itself was not that tricky if you understood the Miesner effect and the details of how it is generated. I was shocked that many physicists could not even solve it !!
And what can you do to approach them.
Two great teachers is the statement. The gift is in moving forward with your personal education. Both teachers giving all they have to teach.
@@nobel.z4266 there are many subfields in physics, they may be physicists in very different fields that have got nothing to do with E&M and haven't really touched the subject in a long time. And they might also be experimental physicist on top of that
Walter sir's approach towards problem solving is definitely unique and conceptually inclusive👏
Respects from India❤
Glad you think so!
Hi
So is Irodov's. I don't think any IITian ever happened without taking a look at Irodov's book at least once. But that doesn't mean Sir Irodov should have called out names and declared them as "wrong". Calling others wrong is distasteful when the matter under discussion is still debatable.
Radhika you are right
I agree with you but you didn't have to write India in the comment, you aren't respecting him.because you are from India, it's just thst you respect him nonetheless
I admire you as a teacher, friend and human. Thank you for your videos, for the feeling of joy you create when I watch these videos. Never forget you are a friend. You are not alone!
You are so welcome!
i discovered you today and im already enchanted by your presence, i love physics but its always been a very tough subject for me. i hope by watching your videos i will get better at it. thankyou so much sir.
Thanks and welcome
Same here
.
I mean i love ..but its tough for me
@@lecturesbywalterlewin.they9259 sir i want to become like you...But i have no money to study in high leve university.
@@PhysicsMenter indian ???
Dear Sir I have been student of HC Verma sir via. his online coureses and I have heard most of his talks. I know that being wrong will olny excite him even more and increase his love for physics and in no way can it upset him. For me it's vey good experiance that scientists around the globe are taking part in this unique and beautiful pursuit of physics and I am so glad to be part of it. For the first time I feel integrated part of Scientist's community and it's only been possible because of your insightful videos. Thank You so much for this ❤❤❤❤🙏🙏🙏
Respected Sir, As an Indian student it's your Duty as a physics teacher to do corrections whether it's a teacher or students and you done it ! EXCELLENT............ 👍Great job sir For the love of physics ❤️❤️❤️
I started watching your videos when I was in 11th grade, and you have helped me reach one of India's most prestigious university (I do not want to name it here), and I am very thankful to you Sir, from the bottom of my heart, you are one of the best teachers I ever came across.
I hope I get the chance to meet you in person some day and get a signed copy of your book "For the Love of Physics"
That's great!
IISC??
@@anweshadutta2807 if it is iisc than why he will hesitate to tell.
I think that university is famous in their area
@@sanatanidost1731 his name is a bit disturbing
And he hasn't got to do with me thinking this, but it's some Garbage app that is no more in India 😂
@@whatismyname759 ooh. Yesss XD..carryminati
4:48 Sir, I have a question: According to you, at the surface of the superconductor, there is a current and therefore it gives rise to magnetic field and that can cancel out incoming varying magnetic field. However, if we change direction of incoming magnetic field (suppose previously the magnetic field was growing in intensity in n type and now incoming magnetic field is increasing in s type, i.e., you are bringing the s pole closer to the loop instead of the n pole), is it be still opossed by the same current that was present at the surface of the superconductor? If yes, then why?
See nobody intrested in your question. You should find out the reason? Why?
@@swapnilorke ohh....really?
@@swapnilorke no need to bully someone cause they asked a question.Apparently 63 people are interested in his problem as it shows as likes.Someone may not know or understand anything just because u understood the same thing doens't make u any better
@@JinaMukherjeeF jey u please stop that question sucks.
That's a good argumentative question dr. anupam, but I guess your question answers itself, read again your question carefully and you will find it. If not, reply me here but i guess you will figure it out yourself.
Even Einstein did mistake when he did not accept the implication of his own equations about the expanding universe! Greats will be Greats. We love both of you "Walter Lewin" and "H.C.Verma" ❤️
not accepting unproven implications is not a mistake. Einstein did however publish his cosmological constant as an unproven possibility and that was precient
Yes hc verma should accept his mistake too❤️
Whats the context can anyone tell me?
@@aniketprasad3128 yeah same
I feel bad that Einstein didn't showed his gratitude for her 1st wife Mileva Maric who helped him in solving Theory Of Relativity .
No single Indian is going to un follow you Sir... Discussing and correcting knowledge is India's fundamental traditions which is known as Shastrarth.
So we admire your courage and intention. Thankyou 🙏🙏🙏😊
So nice of you
@@lecturesbywalterlewin.they9259 Thankyou very much Sir for your kind reply. Your reply is a like blessings for me.🙏🙏🙏 May You Live Long. Love and Respect😊
This is science not arts. No one ever thinks in that way.
Why you people cmnt this like everywhere this is the reason why we have not many physicist in our country
@@neyazahmad76Well, guess what, we do!
You'll never hear a science teacher saying that their approach is the only right approach to a question, there can be multiple ways to get to an answer, one might be better than the other.
India needs more and more professors like you. I wish I had the opportunity to take your classes.
In Physics all approaches are never absolutely correct. There's always some room for something better. Honest physicists don't believe in being the "best" but believe in being "better". Its because of this unbiased mindset of physicsists, physics develops.
Sir, you both are giants in the community of Physics teachers. We love you both.
Hi somebody helps me to understand it I didn't understand, superconducting conducts electricity without resistance than why he is there is no electricity on the surface of the super conductor
Sir I miss your old hair😭, everytime I watch this new video, I remember that it was your twin😂
lmao
Lol
Lol
sir, no one can hate you for saying the truth,there are may problems which are hard to solve even by the greatest scientist of all time
Sir, we Indians respect our teachers and professors very much. You, professor Verma, or be it any other teacher, we are never gonna hate someone who is doing a brilliant job of educating people. Being wrong is no humiliation for us. We accept our mistakes very politely and try to make ourselves better.
Sir , its an honour to get such amounts of knowledge from you ,hc verma,and these explanations done in a creative way .really makes us love physics
Actually sir, you just earned me as a subscriber through your such pure love for physics and stating out facts instead of thinking of losing your "indian fan following" hc sir and you both will forever be my mentors 🙏❤
Positive criticism is the fundamental to any type of learning. Lots of love to you professor
No one is perfect in this world. Not even Newton who was further corrected by Einstein.
It is not going to happen of losing 1 million Indian students. Bcoz everyone loves you and your way of explanation including your humbleness. I'm always feeling proud that I've got such a big opportunity in my life to study with your lectures. After studying with your lectures...the feeling is just like what your Channel's last words are.
❤️😍💯
We Indians are a big fan of yours,so am I. I always follow you and professor Verma in my own physics lectures.
The twin of Walter Lewin probably is also a physics professor.
🤣
Lol , My maths professor is exactly like him even has like similar talking style but in Hindi
All of this is a part of teaching-learning process for us.
Learning never stops.
Always great to see you Sir. It is important that we see thing from the perspective of Physics and not from who has done it. Humans err and a wise person is he who accepts his mistakes and learns from it.A true Physics lover will never have any negative feelings for you or for H.C Verma Sir. I will surely read about this phenomenon and its details.
Sir you are not upsetting anyone in India 🇮🇳 but we feel privileged to see you educating whole world. Best physics teacher of planet😊
A genius never prove another genius wrong, they just correct each others. We love you both Verma and lewin sir
Prof.Verma and Prof.Lewin are all time favorite physics professors.
By listening these conversations i felt proud of the physics that it is inventing everytime and the statement are getting perfect day by day . Glad and amazed after looking dear sir ,their passion in a way his life is the physics and i proud to be his student.and i wanna be like him 😅
This video earned you 1 more Indian subscriber.
Beauty of Science fraternity is that scientists do love being corrected. Rutherford who proved JJ Thompson's atomic model wrong, was indeed Thompson's student.
Prof Verma is an excellent teacher, and all great teachers continue being a better student throughout their lives. Good to know that Physics have connected people of different countries together.
Regards.
Thanks sir , because of you I fell in love with Physics. 🤩🤩🤩🤩🤩you are awesome.
Glad to hear that
@@lecturesbywalterlewin.they9259 sir all students who are dedicated towards study, respect you a lot.
Lots of love from India.
We all love u a lot.
Hats off to you
Two physics legend never fight they improve one's concept and these helps us to get new ideas to us.
Except Edison and Tesla
@@aryansen4280 edison was fool
Thank you sir for correction ❤ im preparing for JEE and now i know where is the mistake.
You aren't losing any one of the Indian sub sir.
Actually I would love if you and HC Verma sir make video together debating over those questions and removing all the misconceptions from our minds.
No matter what... But you both will be our great teachers ❤
I did not see that coming, what a beautiful and simple solution to a beautiful and simple question! Looking forward to next weeks problem. Thanks again for sharing with us. And also, I think the new haircut looks nice.
Professor, I was wondering what would happen if we could do this experiment in vaccum (though moving the magnet would be hard)? Without air contact at the coil surface, would there be any resistance to allow an EMF (and current)?
we'll never leave you Professor..... and I'm really very much pleased to see that you made a video on why Professor Verma is wrong for the sake of your students..... take care Professor stay safe :)
I love both Walter Lewin sir and HC Verma Sir......
Every teacher is a Student in disguise , a teacher by profession and a student for lifetime
Who r u disguised as me lol
@@harshchauhan1789 No fucking way 🤣🤣🤣 thats jokes
You approach is unquestionable professor. Huge respect for you. Love from India 🇮🇳❤️
U just add 1 indian subscriber sir . science is all about arguing things even Newton himself was not correct but it can't stop him from becoming a genius .we love you and also Verma sir 😍😊😊
Ok. Thanks
Sir please allow me to translate your videos into hindi if you will so that many people could understand what physics really is
go ahead
Bruh i am waiting for hindi lectures 😆,please dub them at earliest
@@lecturesbywalterlewin.they9259 I am your big fan sir.
I appreciate the way you work for physics and convert haters into lovers of physics.
Hats off to you
Great👍👍👏 initiative brother
Bhai jo videos dekhte hai unko basic English to aati hi hai
Leaving his age behind he's doing what he loves, and that's what is one of the most inspirational thing about him.... Hope we will always get teachers like him... Thank you from the bottom of my heart sir 😊💜
We never mind mistakes ....bcoz mistakes are the reason he is trying ...and HC Verma is indian pride .....🙏😎🇮🇳
He don't have all the gadgets to perform the experiments he let his students to make the instruments ...all the instruments he used for a experiment is also made by him ....he is such talented man ....
We love him ~❤️
And I am proud of him .....❤️😊
He is one of the best leaner and professor ❤️
Solving a problem right or wrong doesn't decide the quality of a professor. No one can be correct in all fields of science. We can't lose your classes as well as prof H C Verma's. Both are two great contemporary physics professors on the globe.♥️ and revere both of you from the core of my heart.
Professor is really professional 🌺🌺!! We have an immense respect for you sir!! Your 1 million more coming from India🌺🌺🌺🌿🌿
So nice of you
@@lecturesbywalterlewin.they9259 😂😂
@@lecturesbywalterlewin.they9259 hello sir how r u
@@lecturesbywalterlewin.they9259 new subscriber
Indians shud practice birth control ..but i see indians r proud theres 1 billion of them 🤣
Sir I want your most loved book with your autograph . It's my dream hopefully It may possible some day .🔥❤️
Before you decide to buy a book from me *I strongly suggest you get a free copy using the pdf file.*
fiisikis.weebly.com/uploads/5/4/9/3/54939617/for_the_love_of_physics.pdf
You should also consider to buy my book at amazon in your country. *I have been told that in India you can get my book from Amazon and Flipkart for $4.50* These books do not contain the 15 colored photo index (that's why they are so cheap).
If you can afford it, of course, I am willing to send you a signed copy of my book with *a special note for you + a signed picture of me, which will also have your name on it,* but the price is high as I pay 30% tax here in the US of your payment. Postage for me is also high (e.g., India $35). Ofcoz the book that I send you contains the photo index.
Your total costs for 1 paperback copy: US $40; Europe, South America, Brazil, Canada, Pakistan, Nepal, Bangladesh Tanzania & India $65; Middle East & Asia: Japan, Philippines, China, Thailand & Australia $80. I make zero money on these sales, I sell them for what they cost me. You should transfer the money to my PayPal account (see below). *Since we are friends, please mark "family and friends", PayPal will then not charge me a 5% fee* and please let me also know in PayPal your name and complete address and *which name I should use for my note in your book and on my picture.*
*For those of you who only want a signed copy of the picture of me, swinging from the pendulum,* with your name on it as well, it will cost you *$10 for 1 copy* (that includes postage). It's the same price for all countries. *You should send me on PayPal your complete address and the name you want me to write on the picture.* Please transfer the $12 to *my PayPal account which is* lewin-physics@physics.comcastbiz.net. *Keep in mind that you must first enter PayPal and then my account.*
@@lecturesbywalterlewin.they9259 Sir I have Concept of Physics with me.....and I like it...☺ #HCV❤
Love u Walter sir
@@lecturesbywalterlewin.they9259 oh my gosh😍😍😍
@@Indianabhishek7 yeah!
"Laws of Physics are invariant in every frame of references" -- I'm saying it in a metaphorical way. Sir I have a huge respect for you from core of my heart, and for me, HCV is a man I Love. Both of two are the inspiration for millions of people over the globe. Huge respect and LOVE form INDIA sir 🙏
You are so kind in how you corrected your fellow learned colleague for his false findings. A true gentleman.
I am angry after I heard you lost one million Indian subscribers. You are so honest and straight forward.
Sir did not lose 1m subscribers. Chill.
This ‘simple to state problem’ has caused me some ‘brain pain’.
I have often wondered about the role of gravity and temperature on electron flow and at what point does a super conductor become a super conductor.
I have revisited your lectures regarding Faraday and Kirchhoff and I hear your wise words regarding Faraday.
This is why I love Physics.
Physics works and whether you can prove it with mathematics or not Physics is not bothered.
I enjoy watching your videos, even though I don't understand science terminologies.
Glad you like them!
How can a superconducting material have a resistive surface? Sir in your question you mentioned a superconducting coil so as per the question we can say that the whole superconducting coil is having 0 resistance.
Sir we love you a lot. You are an inspiration ❤️❤️❤️love from india🇮🇳
Yeah give indian love to him he is not indian he have every kind of love but not indian love
Basically in HC Verma sir's solution he mentioned that current will be in superconductor but actually it is just on the surface and not inside the superconductor. All he has to mention was tha current is on surface. Well it was just amazing question for the understating, thanks for your time to come up with this.
Not just "all he had to" , he deviated into the wrong direction from there.
But the assumption that the current was inside the superconductor created divergance from the right approach
Huge respect to you both , great legends 🙏
This was the competition/culture in earlier days when scientists or mathematicians would give questions in envelope to solve, I love how Sir Walter is reviveing the culture. Among the professors nd physicists 🙂🙂🙂
Sir you have a great respect in the heart of Indian students. We never get upset, angry on you.
❤️. Love from india ❤️
Namste Sir
Long time since I last had talked with you on UA-cam comments section. Happy to share with you I am currently studying in IIT Guwahati. Have deep gratitude for your free videos that made physics easy for me.
Thanks a lot again sir 🙏🏻
That's a way to learn physics. Pointing out problems in theories and solutions is what makes physics more interesting as it helps to understand reason behind the phenomenon more clearly. Thank you sir.
Sir so if there is an electric field outside the superconductor or on the surface of the superconductor there must be a change in magnetic flux according to Faraday's law but here the net magnetic field is 0 which is constant.
So does it violate Faraday's law of induction?
Sir this shirt suites you. Keep falling us in love of physics!❤️
Hey professor can you someday make a video on Mould effect/Chain Fountain, recently there has been a confusing dispute going on among few Science UA-camrs on that topic.
Indians never feel ashame of being wrong if somebody correct them... Rather we appreciate if we are wrong and people correct us. Hats of to you such an intellect person you are.
Being in 11th I watch your lecture
Sometime I understand sometime not but that's not matter .
We love you ❤ India love you ❤
Mistakes can done by every humans
Lot of respect from India,❤❤❤❤
What can we learn:-
Mistakes don't make u a loser
Instead they are proof that u tried hard
Even great personalities commit mistake
But they look it as an opportunity to learn what went wrong
So dont stress if u fail
😂 they are teaching wrong things
We Indians believe in karma which inturn means giving one's best shot.It speaks a lot about HC Verma sir when you exclusively dedicate 8 minutes of your precious time. We love you all trio( your excellence Walter Sir, Physics गुरुदेव HC Verma and physics)
Very good
You will gain more subscriber after this video professor. We are Indian and our heart is so big, and we live you as much we love prof. Verma. Don't worry.
So nice of you
@@lecturesbywalterlewin.they9259 Thanks prof.
I'm a nine grade student from india(a small village), but I still like watching videos of high physics. Though I don't understand those concept as like my brothers and sisters who read in 11and 12.sir you, alakh sir and khan sir have always made me love physics.
Lewin sir didn't say that that verma sir is wrong instead he's trying to uncover the wrongs to help humankind through physics. ❤
5:20 we dont even hold the position to question the legitimacy of their argument as they have devoted their entire life to physics and we are just a baby born having just started to learn physics.sir dont worry smart students know that questioning your argument is a skill that is beyond our boundaries in physics and we in no way are close to doing it yet
No comments both of them are great teachers who changed so many students life.
WE ARE INDIAN AND WE KNOW HOW TO RESPECT 🙏🏻👍🏻
We are very grateful you explained us the concept so beautifully. We respect you for your immense knowledge and no you are not losing your 1 million subscribers.
Sir, thanks so much for finally telling us the solution.
Doesn't matter it's sir Lewin, verma or anyone else.
Physics is a beauty... Just to be loved and appreciated.
I truly love sir's new hairstyle...😍😍Love for physics always make everyone awesome in every manner...Love from India..
I am a 9th grader & I started watching your videos & lectures from 8th grade & started watching HC Verma video lectures from the beginning of 9th. Both of you are amazing!! For the love of Physics I am so glad that I found both of your channels at this early age. Never met such a great Physics teacher like you sir!! I will surely love to meet you someday. Lots of Love & respect from India. !!
"Walter Lewin" & "HC Verma" are the best - for the love of Physics⚛!!
I'm also a 9th grader.
I am 6 th grader, now what ??
Lots of respect from India ❤️. You are such an amazing teacher.
So nice of you
I really enjoyed this problem and it doesn’t matter who in particular is right or wrong. The fact is we are all trying to find how nature works and that’s the most important and most beautiful thing about science ❤️
Sir you are great as always. You are not proving our dearest prof. HC Verma sir wrong. It is the difference of approaches which is being conveyed to the audience by you. Immense respect for both the geniuses of our era🙏🏻. And as always,, lots of love and wishes to you from India🙏🏻
Professor, you will not lose your million subscribers because science is a field in which we make many mistakes, from Galileo's understanding of the speed of light to Maxwell's concept of the luminiferous aether. So, do not worry. 😊
Love from your Indian student.
Wow, thanks
@lecturesbywalterlewin.they9259 sir with due respect, you don't have to say thanks . Actually its us who have to thank you for teaching us many things 🕴
Well said sir not anyone always right.
He sometimes made a mistake.
Salute to that you are raising a voice against wrong concept which is taught by not onyl professor Verma but also by many professors.
I don't even recollect physics anymore. I come here to just watch you. Love from India. Intellectual honesty is needed in science. If you try to be nice, it would have made you a social/humanities professors!
Sir you are my idol.. Your dedication to Physics is priceless.. May you live 100 years.. So that one day we cheers to Philosophy of Science..
I read up of some of the basic concepts for this problem. My attempt at the answer -
1. There will be no current inside the superconducting wire
2. Faraday's law doesnt apply inside, because for it to generate an induced emf - the spin of the electrons must be parallel. But the spin of electrons in a cooper pair in a superconductor are anti-parallel. So Faraday's law doesn't work inside the superconductor.. (until the Meissner state breaks down when the applied magnetic field is too strong).
3. There is no b-field inside the superconductor. For the reason stated above - the opposite spin of electrons in a Cooper pair. Hence the quote "magnetism and superconductivity are natural enemies"
4. Faraday's law only applies on the surface of the wire (where it acts as a perfect diamagnet and perfectly cancels the external field), as magnetic field decays exponentially inside the superconductor.
Yes, you are absolutely right there can be no current in the super conductor! I agree with you!
Thank you for being so blatantly honest, we respect you even more! Also thank you for "For the love of Physics".
Physics at it's top Beauty...❤️
It's all about the truth not the emotional thinking or believe.
Thank you so much sir.
It's not like that sir, you will never lose your Indian subscribers.
We love you and your teachings.
Gratitude to you for all this teachings.
Thank you Dr. Lewin. So, Prof Verma missed the Meissner effect, which expels magnetic field from the body of the superconductor. I understand that, inside the coil, B=0 leading to E=0. And hence, current is 0.
But, what if we are just talking about regular conductor with 0 resistance? Will it also show same property? If not then, B and E should be non-zero, and current should be infinite. But there should be zero Ohmic heat loss, and only radiation loss should be there, due to moving charges. I would love to be corrected or, given a feedback on this. Thank you.