It is just better instead of reading these experiments from book its great to watch them from youtube thanks sir for this beautifully explained experiment.....
Exactly what I needed....you see..in the theory you just have to gobble up stuff but when you actually see a practical example...it sets in your mind as a visual memory which is much more effective than that of theory... truckloads of thanks!!!... really needed this!!💖💗💖
Worth mentioning (archaic) Gauss's Laws (CGS system), including things like ESUs and Statcoulombs, but especially GAUSSIAN SURFACES and how charge spreads out on such a surface. Beyond that, the ability to bucket brigade charge into the center of a Gaussian sphere without overcoming the voltage/charge on the surface is /key/ to the functioning of the Van de Graaff generator, or prior to that, the Tesla Death Ray. :)
There would be no net charge transfer in that situation, so they would remain neutral. In the real world, there might be some charging since the process is so sensitive to surface contamination, chemical history, moisture level, etc.
For this in particular, you just need to spherical metallic objects that are isolated (note the plastic mounts). I am lucky that I can get equipment from a big demo closet that has been slowly stocked over 100 years. But that means I have no idea where most of the stuff came from. I think the main modern supplier of these things is PASCO, which can be expensive, but you can find everday objects for lots of demos.
Where can you buy those!? I was able to perform this experiment with the help of a student and 2 different Van de Graaf machines but my results were inconsistent.
The basic concept of how, with the flip of a switch, NFL goalposts can be used to create an EM field that can repel a similarly charged football; deflecting the football and preventing it from passing through the uprights. Same concept can be used on charged NBA rims, deflecting and thusly preventing a similarly charged basketball from passing through the rim.
No, it will still work if they are different sizes or shapes. But the distribution of charge around the surface depends on size and shape, so those factors will affect the amount of charge you get by doing this.
When you rub that rod and tape the metal body didn't become charged , the metal balls charge get polarise . You have to use earthing to make it charged.
No. The same thing would happen for large/small, but if the geometry gets unusual, like having the rod above or at an angle, things get complicated. I am doing this "one dimensional symmetric version" to avoid those complications.
@@Prof-Hafner i have a q. Does these spheres already have charge ? I mean they were nut rubbed around each other they just touched each other. So induction is basically that charges can be developed just by touching
@@Aditya-qx7nf The spheres have lots of charge: positive (the nuclei) and negative (the electrons). Since the spheres are metals, some of the electrons are free to move around. The rod is moving some of the negative charges to one side to create an imbalance between the two spheres, and when you separate them they are stuck that way (charged).
It is just better instead of reading these experiments from book its great to watch them from youtube thanks sir for this beautifully explained experiment.....
We still have hope because of teachers like you such a simple concept but books make them so scary
I agree with you
Lmao I'm actually mind blown actually seeing this than just reading it in a stupid module
When I hear the word module my brain checks out.
Exactly what I needed....you see..in the theory you just have to gobble up stuff but when you actually see a practical example...it sets in your mind as a visual memory which is much more effective than that of theory... truckloads of thanks!!!... really needed this!!💖💗💖
Well, theory or visual does not make much of a difference. When I read any theory, I have the capability to visualise things.
Seeing is believing 😹 that one had me
One of the best physics channel i have come so far.
Its awesome. Just reading the book don't allow us to understand the concept so good. Beautifully explained
Your teaching style is amazing 😍 I had never seen before 👌👌👌
Really useful, short and to the point.
😱 OMG what a explanation sir after watching this video induction is very easy for me 😁thank you so much sir
Thank you Sir, I wast just reading a book and I am curious how this topic is observed in real life, thank God I have stumbles on your video.
tysm i have a physics test tmr and this enlightened me
cant thank you enough fr this amazing explanation and practically shown video
Thats more clear than reading a bunch of boring text in a book
Sparkling encourage me very much 😊😊
Worth mentioning (archaic) Gauss's Laws (CGS system), including things like ESUs and Statcoulombs, but especially GAUSSIAN SURFACES and how charge spreads out on such a surface. Beyond that, the ability to bucket brigade charge into the center of a Gaussian sphere without overcoming the voltage/charge on the surface is /key/ to the functioning of the Van de Graaff generator, or prior to that, the Tesla Death Ray. :)
Omfg that is fucking crazy....... It feels so amazing when we such things in real concepts are crystal cleared.... 😍
Tysm.....
😁😁
Thank you so much,sir! Your explanation was easy and clear,I learned a lot from here.
Hii
I am from India
You can help me
Wonderful presentation!!! 👍👍👍
But what will happen if we bring that tape between the spheres
Plz reply
Sir I have a question, if two same material rubbing...who is positive and who is negative?????
There would be no net charge transfer in that situation, so they would remain neutral. In the real world, there might be some charging since the process is so sensitive to surface contamination, chemical history, moisture level, etc.
really killer visualisation
all concept cleared
thanks you
This was really helpful thank you so much you spared me the time for reading
I want to incorporate these to my science demonstrations and laboratories. What materials do I need to implement these?
For this in particular, you just need to spherical metallic objects that are isolated (note the plastic mounts). I am lucky that I can get equipment from a big demo closet that has been slowly stocked over 100 years. But that means I have no idea where most of the stuff came from. I think the main modern supplier of these things is PASCO, which can be expensive, but you can find everday objects for lots of demos.
Great video Carl!
?
@@Prof-Hafner You sound a bit like Carl Sagan
Amazing ❤❤❤ thank you so so so so so so so so much for this DEMO ❤❤❤❤❤😊😊😊😊😊
thank you sir I finally got charging by induction practically
Where can you buy those!? I was able to perform this experiment with the help of a student and 2 different Van de Graaf machines but my results were inconsistent.
Loved this , really helpful and that spark though
It took a few tries for the camera to catch it!
@@Prof-Hafner truly worth it
Great mind bender for the curious.
Thanks!
طالب سادس كان هنا "الموصل الكروي المنفرد المعزول "
The basic concept of how, with the flip of a switch, NFL goalposts can be used to create an EM field that can repel a similarly charged football; deflecting the football and preventing it from passing through the uprights. Same concept can be used on charged NBA rims, deflecting and thusly preventing a similarly charged basketball from passing through the rim.
Electrostatics and Taylor Swift. It’s all rigged. 😂
I am also studying for neet exam India ,my age just 17 but I love physics @@Prof-Hafner
Experiments are quite interesting to see than to read.
Is it necessary for the two conductors to be of same size
No, it will still work if they are different sizes or shapes. But the distribution of charge around the surface depends on size and shape, so those factors will affect the amount of charge you get by doing this.
When you rub that rod and tape the metal body didn't become charged , the metal balls charge get polarise . You have to use earthing to make it charged.
Amazing video, perfect explanation!
perfectly explained and demonstrated
Thanks sir when i saw practically now i believe it's really happen
Perfect, what I wanted🙌
What an explanation ❤
Great experiment
Damn that’s crazy! Thanks that was really helpful!
Well that was the first time I find physics interesting.
loved it sir!!
Materials name?
Sir what is the reason of sparkling....please sir explain in few words...
Thanks for great video
Do the sphere have to be equal size for your method to work ?
No. The same thing would happen for large/small, but if the geometry gets unusual, like having the rod above or at an angle, things get complicated. I am doing this "one dimensional symmetric version" to avoid those complications.
@@Prof-Hafner thanks for your answer
clear explanation! love it :))
Nice experiment
Thank you Billy Cyrus, helped me a lot
Ahhhh the things we have to do when the music career dries up.
Nice experiment sir ji
But professor... How the spark is produced???
Then... Why not that tape(+) and the left side of the (sphere a)(-) is producing spark???
Only attraction???
😮it actually works
Sir explain electrostatic potential and capacitance please
ua-cam.com/play/PL9_sR6QqqcymuuH4gQhg5kSmyePmGcX3h.html
Very nice
It's amazing xperiment 👍
Thank you sir.
Nice it helped a lot👍
Superb
You are best👍💯
شكرا🌹
Sir can you explain full atoms chapter of class 12 please sir
Holy shit science is lowkey real
nice stuff
This is amazing, what the hell 😳
Nice study sir
Thanks! :)
Thanks ❣️
Pretty neat!
Perfect🌈👌👌
Cool😎
IT’S THAT THING FROM MR. BEAN, NO?
Tommy Boy
Someone actually doing the experiment instead of reading them out
Wow ❕
Atoms full chapter sir
👍
Grt
Good boy
From india
Op 🔥🔥
anyone is here from page 6 experiment of class 12th NCERT book of physics? 😂
Not me, but welcome!
Me
@@Prof-Hafner i have a q. Does these spheres already have charge ? I mean they were nut rubbed around each other they just touched each other. So induction is basically that charges can be developed just by touching
@@Prof-Hafner and what if the objects touching each other are different like a copper wire and a gold wire
@@Aditya-qx7nf The spheres have lots of charge: positive (the nuclei) and negative (the electrons). Since the spheres are metals, some of the electrons are free to move around. The rod is moving some of the negative charges to one side to create an imbalance between the two spheres, and when you separate them they are stuck that way (charged).
Bhaakkk.....
👍