I've been stressing over this stupid concept because it denied most of my understanding and then I saw this video. Man you have no idea how thankful I am ❤️❤️❤️
MAAN I have been learning Physics more than three years and i never could understand, but i watched your film and now i know it well, big thanks to you :)
Thanks king it's really helpful. I just noticed you are using RHL in a different way, here in Australia, thumb is the direction of the current, the other 4 fingers are the direction of magnetic field and the direction of the force is the normal to the palm.
I find this an excellent thought experiment, and I have no immediate response. I will mull it over and get back to you if I uncover a response. You can confirm the result I describe experimentally very easily with either a large current or a sensitive setup, so your question is excellent.
Sir, thanks for clearing my doubt, I was confused with force direction .I was doing mistake by not considering in and out of magnetic field created by each conductor as you did 4:44. Keep on doing good work. !!!
Doc Schuster Thanks for your quick reply! I got very confused with the right hand rule of velocity/B/Force for positive charges and its variant with the left hand and the one of intensity/B/force... but after watching this video and others of yours i have finally understood it, greetings from Spain!
wiza3337 Yay, Spain! Thanks for watching. BTW, you'll find that (barring the Hall Effect or other more complicated experiments, you can't discover whether electrons are going one way or mobile positive charges are going the other way. Lots of symmetry here.
strange, if you have two electrons stationary , they repel each other (static force), but if you take these same two electrons and shoot them down a parallel path, they then attract each other (two parallel line currents in same direction). if two static electrons are placed north and south on the earth, shouldn't the electrons attract each other since the are both travelling parallel due to the direction of the earth's rotation (parallel line currents) ?
brian menendez Ultimately, the question is about how big their attraction is. The attraction because of the parallel currents is only noticeable because the wires that hold the currents are neutral. As such, Coulombic repulsion does not need to be overcome. If you propose that solitary electrons need to be going fast enough to actually be net attracted, you can derive special relativity!!! Woot!
brian menendez I just learned about Birkeland currents this morning (thanks!), but it seems like they are in a plasma. I would imagine that there are positive charges up in there that are not moving nearly as fast. As I study the sketches of the currents on Wikipedia, they seem to move apart. This is probably because they follow B field lines, but it also may indicate that they are not particularly attracted. Fun question.
jeez thanks, so if the currents were other way, which direction does the force travel though, for example, if one current is moving in, and the other is moving out THanks
Ampere's Law is The Bernoulli principle in a fluid medium. Aka gravity comes from vortices around an axis of flow through a fluid medium. The venturi effect draws the wires together into the low pressure region between the wires, just like elliptical galaxies form between two current carrying galaxies.
I have a doubt: Suppose there is a space ship which is traveling very fast. Then inside the space ship would two identical charges(like two electrons) attract each other, because they would seem like current going in the same direction. It seems to me that an electron attracting another electron would be ridiculous for the person sitting in the space ship. taking that speed of space ship is enough so that force of attraction becomes greater than electrostatic force of repulsion.
Hey very helpful video but I have question? Why do the conductors experince the attractive force at all? The forces exerted on each conductor by the other is equal but opposite so I thought that the forces would cancel out and the conductors would remain staionary. Could you please help clarify?
Why did you assume the current as a positive charge although electrons are negative so the direction of magnetic force should be found out by curling our right hand fingers from B to v
Wait, is it because the current I2 is the one causing the magnetic flux and this flux it cut by the other wire, 1, to cause a magnetic force on wire1? And that r is used because it gives the magnetic flux density of wire 2, at only the region where the wire 1 cuts the flux?
Why do we use B2 to find the force on I1? Is it because the I2 wire exerts a force on the I1 ire? If so, then why do we use I1 to find the force on 1? Why not use I2, since it's the I2 wire that's causing the magnetic flux?
I wanna ask a question when using the second handed rule the thumb points in the direction of the magnetic field and the needle always points to the north pole thats strange why don't the north pole of the needle of a compass be attracted to south magnetic field 😕
i have one doubt. . two wires carrying current attract each other ok i understood that. . what i am trying to ask is that do the transmission lines have this tendency to attract each other?
periwinkle If the current is going the same direction! I think usually transmission lines have outward current and inward current at each instant, though.
Good presentation, but the force rises up to about 25% more when the wires are touching each other. Just apply an integration integration of JxB over the cross section of the wire studied. So assume that the wires are infinitely thin otherwise you have to solve a rather complex integration.
OMG! Thank you so much! Without this video, I think I will probably failed my quiz tmr. I can finally understand the direction of the magnetic field (: Thanks a lot!
I love how happy you sound
It makes me want to like Physics more
Thanks, Farah! Teaching with passion keeps me awake, too.
Your enthusiasm is contagious!!! Thanks for the help!!!
"wire 1 isn't affected by its own magnetic field THAT'S STUPID!!"
This statement actually cleared all my doubt!
@@zbmfan7753 omg same lol
It’s giving John Mulaney gets into physics tutorial videos
Sir I love your energy. You're making me smile while studying physics and that's amazing. Keep it up, thanks
9 years later and still the best (funny) tutorial... thanks so much for the great work
helped clarify and also made me laugh! "thats stupid" lolol
You really saved me from depression❤
How can someone make physics so easy and understandable at the same time.
Are you god? Physics lord.
damn this is the kinda teacher I want, he’s lowkey chill but still leaves no doubt uncleared
Why it is said that regardless the magnitude of the current, the force will be equal? When I'm using f=bil, I'm not getting the logic.
Huh...I found this CHANNEL so late..THATS SO STUPID !!..THANKS A LOT..YOUR ENERGY N HAPPINESS IS SO HUGE..MAN......GOD BLESS U
I really appreciate you making these videos! Your energy and passion really make your videos stand out from other instructional videos out there.
Not yet, but that's certainly a gap I could rectify next year. Thanks for the suggestion.
Thanks, Cody. I love what I do - I hope you find that, as well.
I've been stressing over this stupid concept because it denied most of my understanding and then I saw this video. Man you have no idea how thankful I am ❤️❤️❤️
God bless u man
Amazing!! Helped me loads. Subscribed ya. Planning to go through all your videos! You will blow in the sky, trust me !!
honestly THE best academics video ive ever watched! Made me laugh
thanks. that cleared away my last confusion since i gotta go through my physics examination tomorrow.
And at the last second the video was saved from becoming a carrot currying lesson.
I love the passion in your videos Doc! Keeps me awake :D
Thank you, you saved my life.
MAAN I have been learning Physics more than three years and i never could understand, but i watched your film and now i know it well, big thanks to you :)
thank you so much man i now started to under stand why the conductor is use for electrical wiring
6:30 no way Michel scott is teaching physics
Thanks king it's really helpful.
I just noticed you are using RHL in a different way, here in Australia, thumb is the direction of the current, the other 4 fingers are the direction of magnetic field and the direction of the force is the normal to the palm.
Thank you so much for the amazing video
I find this an excellent thought experiment, and I have no immediate response. I will mull it over and get back to you if I uncover a response.
You can confirm the result I describe experimentally very easily with either a large current or a sensitive setup, so your question is excellent.
This is the funniest physics vid I've seen. Also made this super clear
Ahhh got it! thank you so much. Beautifully explained.
could you do a video that explains force between two permanent magnets??
Sir, thanks for clearing my doubt, I was confused with force direction .I was doing mistake by not considering in and out of magnetic field created by each conductor as you did 4:44. Keep on doing good work. !!!
thanks so much! this makes a lot more sense now
Doc Schuster In 5:15 you say that we pretend the charges are positive, if they were negative would the forces of the wires be repulsive instead?
wiza3337 Oooh! Work through it to see!
Doc Schuster Thanks for your quick reply! I got very confused with the right hand rule of velocity/B/Force for positive charges and its variant with the left hand and the one of intensity/B/force... but after watching this video and others of yours i have finally understood it, greetings from Spain!
wiza3337 Yay, Spain! Thanks for watching. BTW, you'll find that (barring the Hall Effect or other more complicated experiments, you can't discover whether electrons are going one way or mobile positive charges are going the other way. Lots of symmetry here.
strange, if you have two electrons stationary , they repel each other (static force), but if you take these same two electrons and shoot them down a parallel path, they then attract each other (two parallel line currents in same direction).
if two static electrons are placed north and south on the earth, shouldn't the electrons attract each other since the are both travelling parallel due to the direction of the earth's rotation (parallel line currents) ?
brian menendez Ultimately, the question is about how big their attraction is. The attraction because of the parallel currents is only noticeable because the wires that hold the currents are neutral. As such, Coulombic repulsion does not need to be overcome. If you propose that solitary electrons need to be going fast enough to actually be net attracted, you can derive special relativity!!! Woot!
Doc Schuster
what about Birkland currents in space that don't have any wires as a medium,
brian menendez I just learned about Birkeland currents this morning (thanks!), but it seems like they are in a plasma. I would imagine that there are positive charges up in there that are not moving nearly as fast. As I study the sketches of the currents on Wikipedia, they seem to move apart. This is probably because they follow B field lines, but it also may indicate that they are not particularly attracted. Fun question.
Doc Schuster huh, your explanation has made me even more confused, sorry
thanks alot............the way of sharing ur knowledge is really awesome
jeez thanks, so if the currents were other way, which direction does the force travel though, for example, if one current is moving in, and the other is moving out
THanks
Ampere's Law is The Bernoulli principle in a fluid medium. Aka gravity comes from vortices around an axis of flow through a fluid medium. The venturi effect draws the wires together into the low pressure region between the wires, just like elliptical galaxies form between two current carrying galaxies.
I have a doubt: Suppose there is a space ship which is traveling very fast. Then inside the space ship would two identical charges(like two electrons) attract each other, because they would seem like current going in the same direction. It seems to me that an electron attracting another electron would be ridiculous for the person sitting in the space ship. taking that speed of space ship is enough so that force of attraction becomes greater than electrostatic force of repulsion.
Thank you so much you made that much easier for me :)
Really appreciable
5:25 what did you mean by velocity out of the screen???? what rule was that that you used - left hand rule or right hand rule ?
He used F = q(VxB) for determining the direction of force...
Thanks! Helped me solve a 4 thousand old mystery.
thank you so much!
finally understood this, thanks
Fantastic video now i understand it and will never forget it thanks!!!
Thanks a lot man. I'm working through Griffiths and they said the direction of the field would be into the page but I didn't understand why.
thank you!
best explanation.. thank you!
thanks for making a clear-cut explanation
EXCELLENT video. thank you!
6:30 He reminds of Hans Landa in Inglorious Bastards
I love the way you explained it :)
Your vid is awesome. It helps a lot
grt bro u made it very simple
these videos are gold
Thank you.
doc, do you have a video on biot-savart law? :)
Awesome explanation.
i just accepted this when my teacher said this. But now i understood.
Hey very helpful video but I have question? Why do the conductors experince the attractive force at all? The forces exerted on each conductor by the other is equal but opposite so I thought that the forces would cancel out and the conductors would remain staionary. Could you please help clarify?
thank you so much
Why did you assume the current as a positive charge although electrons are negative so the direction of magnetic force should be found out by curling our right hand fingers from B to v
sir can u please make a video of effective point of application in physics if force is varying for a particular surface
Wait, is it because the current I2 is the one causing the magnetic flux and this flux it cut by the other wire, 1, to cause a magnetic force on wire1? And that r is used because it gives the magnetic flux density of wire 2, at only the region where the wire 1 cuts the flux?
THANK YOU BRO YOU ARE SO SIGMA I LOVE YOU THIS HELPED ME SO MUCH OMG
really trust on your physics teacher.....!!, you are awesome dude....
Why do we use B2 to find the force on I1? Is it because the I2 wire exerts a force on the I1 ire? If so, then why do we use I1 to find the force on 1? Why not use I2, since it's the I2 wire that's causing the magnetic flux?
Thank you
First time I understand it clearly. Thank you so much
Thankyou !
that's awesome,
that was really easy to understand
how about difference direction ?
I wanna ask a question when using the second handed rule the thumb points in the direction of the magnetic field and the needle always points to the north pole thats strange why don't the north pole of the needle of a compass be attracted to south magnetic field 😕
Sir you are great , I really hope I end up in your class if you teach in a university too.
are you using conventional or electron flow theory?
Conventional.
Thanks, so if I use electron I use the "left hand rule"
Yep!
THANK YOU
i have one doubt. . two wires carrying current attract each other ok i understood that. . what i am trying to ask is that do the transmission lines have this tendency to attract each other?
periwinkle If the current is going the same direction! I think usually transmission lines have outward current and inward current at each instant, though.
Good presentation, but the force rises up to about 25% more when the wires are touching each other. Just apply an integration integration of JxB over the cross section of the wire studied. So assume that the wires are infinitely thin otherwise you have to solve a rather complex integration.
John Compter That's a great point! Thanks!
😍😍😍😍 I finally understand it 😍😍😍😍
Thanks...
Great !!
Oh really made me so clear
This concept was so
Bewildering to me
I'm just now so clear about that
Thank you so much 👌👌👍👍👍👈👈😉😉😉😄
Perfect and thank you 👍👌
very much appreciated for the help you provide for those in need
i respect you very much to spend time and energy making these videos
Thanks a lot mann!!!
just be careful, F = ILxB (and the arrangement of the values matters for a cross product, i.e. AxB = -BxA)
Excellent point.
Thnx a lot sir u made my doubts clear
love you sir👌👌
OMG! Thank you so much! Without this video, I think I will probably failed my quiz tmr. I can finally understand the direction of the magnetic field (: Thanks a lot!
Perfect
Thank so much, helped me in 2020 ♥
God! ThankYou helped alott !! X
0:29 ' repulsed '
awesome
thanks man
Is Newton's Third Law applicable, given these are magnetic forces?
I liked the video even before watching it.👍
great! very useful for me.Thanks!! :)