Calculating displacement & conduction current | Electromagnetic waves | Physics | Khan Academy

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[@virupannamedikinal]

Same

[@Ranbir.Bhardwaj]

3:51 you told how electric field inside the wire is 0, I searched a lot about it on youtube but I finally found it here. Thanks for covering all details. They all matter a lot to someone.

[@inversedq2190]

its not 0 its neglegible compared to the conduction current. Current itself is possible only because of electric field inside the wire.

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What an excellent educator! I love all your videos. (I think that your videos are underrated)

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yes

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Very Clear and flawless teaching

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Thank you for the effective and skillful explanation

[@wgjohnson]

Superb. I teach physics and definitely enjoyed this video. Wish this was around when I was in high school.

[@AvGeek_IXA]

Crystal clear Thank you so much sir.

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MIND BLOWING

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[@GoogleUser-ee8ro]

excellent explanation and illustration

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[@eefunhuang6958]

Excellent! That even apply to finding return path of the transmission line theory

[@francisps3618]

Thanks man ❤

[@shivanshikasahani6465]

Made it so easy ...awesome..Thanks a lot🙏😊

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[@amitanayak2166]

thank you sir

[@philoso377]

Nice video and presentation. The ampere law deals with direct current while Maxwell’s displacement current law deals with alternating current. The two combined enables generalization of space wave, the electromagnetic wave.

[@kates-creates]

great explanation!

[@armangevorkyan1975]

But in calculation of conduction current magnetic field you neglected the electrical field change created magnetic field according to Maxwell, so it seems that maxwell eqeuation violates the conservetion of energy.

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hey, It will be too awesome to imagine, you start making videos for competitive exams like jee or neet..

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👍 great

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Ossom video..

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I appriciate your work, well done 🎉

[@philoso377]

Nice video and presentation. Remember that, electric and magnetic fields doesn’t exists in vacuum alone without vacuum permittivity or vacuum permeability. So where did the permittivity and permeability came from? The answer is Aether of vacuum.

[@SAJAN_ECE]

Dear Mahesh Sir, I am an educator. I enjoy all your videos! You have a great skill in story telling. I just have one question. Expecting a reply. Which tool are you using to create the videos? Sketchbook Pro or Sketchbook Motion? Thanks for the Reply.

[@KhanAcademyIndiaEnglish]

Sketchbook pro (which is just sketchbook now, its free!)

[@SAJAN_ECE]

@@KhanAcademyIndiaEnglish Thank you very much sir. I was wondering how are you making all these wonderful animations. Especially in Biology, the Ear, Eye Animations were wonderful. Most of your Semiconductor Videos were an eye opener to me as an Electronics Faculty. I recommended all your Electronics and Electrical Videos to my students. Thank you very much for the reply. I really appreciate your dedication in creating such beautiful animations using the Flip Book Animation facility in Sketchbook. Also I must mention that you have a great drawing skill. They are amazing drawings. Wonderful usage of the tool!

[@KhanAcademyIndiaEnglish]

@@SAJAN_ECE Wow, thanks a ton for the words of appreciation. That means a lot coming from another teacher, and it made my day :)

[@ronalddejong4692]

Wonderful clear explanation with great intonation makes it easy to understand even for stupid politicians!

[@AravindS-o1z]

Sir i THANK YOU VERY MUCH sir

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He is Mahesh Sir from float head physics ❤️

[@adityasonawane8912]

Sir make video on why moving charge create magnetic field through special theory of relativity only to get fell of that

[@donboser9673]

Mukesh, I don’t understand why you say the Electric Field at loop a is near zero? The E Field should radiate outward. Can you explain further?

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[@anilkandel9804]

For detailed explanation kzbin.info/www/bejne/bou8d4yLe7eVoq8

[@mithleshsingh6307]

Why is the electric field always preferred and not the magnetic field to define something in an electromagnetic wave..??

[@harrymed6799]

Any body here...clarify my doubt... 1st case: Consider you are having 8 apples. You gonna share that to 2 boys How do you do? Well it's easy eachu boy will get 4 apples 8/2=4 here 4 represents the no. Of apple each got 2nd case: Consider you are having 0 apples and trying to share that to 2 boys Now two boys won't get apples. So there's share is 0 0/2=0 3rd case: Consider you are having 8 apples but there are no one to share this. Which means you are not going to share those apples. That is, there are no boys which means there are no more shares RIGHT!!!!! As per my point of view 8/0 must be equal to 0 only. The ans infinity holds good when i introduce limit concept. But there is an irony when i think like this. Please clarify my doubt. I am wandering with this for 2 years

[@adityasonawane8912]

See 8/4 means that 4 should be added 2 times to get 8 so this gives us 8/4=2 . Now 0/2 means there is now need to add 2 to get 0 so 0/2=0 . 8/0 means that how many times 0 should be added to get 8 so if we continue adding it it won't reach to 8 . 8/0 = 0+0+0+0+.... Infinity. this give ultimately there sum 0

[@harrymed6799]

@@adityasonawane8912 in second case 0/2 as per ur answer 0 times we are adding 2 so that we get 0 In 3rd case 8/0 as per ur answer if we add 0 infinity times we can't get 8 Here infinity doesn't mean undefined 0/0 like expression is undefined. The graph of 1/x leads to infinity at x=0 so infinity here doesn't mean undefined.

[@k.abi129]

Its like 0×infinity which is undefined Edit(for visualization purpose): if it is zero boys u can give unlimited amount to noone as u wont lose any apples. But if u have zero apples then u can give nothing unlike case3. Focus on Frame of reference: It is not just only about how many apples those boys received(as they receive nothing in case 2&3). It is also about how many apples u give or lost.