Displacement current & Ampere Maxwell's law | Electromagnetic waves | Physics | Khan Academy
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- čas přidán 16. 06. 2021
- Let's explore what displacement current is and how it corrects Ampere's law.
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Created by Mahesh Shenoy
Mahesh is so underrated,
He deserves more attention and praise for his outstanding teaching ability, how he breaks down complex concept of physics into simple terms..
great explanation, as always!
Agreed. Hes a fantastic teacher
Sir you deserve a nobel prize for teaching
Yet we reward with poor pay
no he doesn't
He is not that great
Why@@sirii3438
And you also deserve a Nobel prize for this type of comments 😂
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Mahesh sir is one of the finest physics teachers👏
Much better than most JEE/NEET channels.
this man's storying telling skills are top-notch LMAO i was ENGAGED like pls tell us what Maxwell thought !! had me on the edge of my seat
No word can carry my zeal, nor could have any intelligent being that lived... Ay, the perpetual bliss but to reconcile with the wondrous beauty of nature that we are so devoutly yet unbeknownstly attached to. Let's have a time together to commend on the astounding process through which the great theories of nature unfolded unto mankind...Nevertheless, consciousness plays dice!(Prick a thorn unless you accord with the phenomenon of Quantum Entanglement)Right reverence and gratitude unto Sir James Clerk Maxwell who showed us to the portal of this great theory and of course to Mahesh sir, who reiterated it in words so rich, so powerful...
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Excellent! A confusingly named concept - displacement current - given a lucid accounting. I wish as a physics major, decades ago, I had access to this video - instead of our E&M professor just introducing the term with little explanation.
Great handwriting, great English, great enthusiasm for physics.
Great video on a difficult concept. Keep it up. Students around the world would love to see more of such videos on different topics in science.
Watching one of these videos is like watching a great movie/following a story, wanting to know how it all ends. Thank you
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exactly
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This is the best video for displacement current
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What I wonder is the explanation of displacement current. I also thought it can be named wireless current. Hats off to Mahesh Sir
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i bassically love the explanation.
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U are the best teacher ever I learn from
Thanks Mahesh Shenoy sir😊
you're an amazing teacher, today i understood a concept i have been struggling to grasp for a while. thank you so much sir!
thank you very much this expanation is perfect 👌🏻
sir your videos are brilliant, each concept explained so simple yet smart, thank you so much !
what an explanation !
Great explanation!
Excellent
thank you kind sir
6:20 My Eureka moment. Khan academy, Iam really blessed to have you.
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I am really speechless how in 10 min he made me understand difference between conduction current and displacement current
Thank you
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Very good explanation
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Lovely handwriting
Tq
Nice video and presentation.
By page 3:50 presence of B at p confirms there is current flow through the vacuum between parallel plate and continue down the remains of circuit.
Vacuum itself cannot pass charge unless it has permittivity which explains the B at q.
So what is in the vacuum that pass charges? It was Aether, a fluid that has no mechanical but electrical properties, which is permittivity. Aether as a fluid attaches to all matter and drag directly with matter in the local frame and drag indirectly in the global frame.
Without Khan academy and you Mahesh sir,I would hate physics!!!
Thanks tutor sir! And for concerning Maxwell....🤣
Beleive me sir i have never seen a teacher like you ...you are truly something else 🙏
Page 8:00 it should be noted that Aether has no mechanical but electrical property and that there is no particles in it.
Hello sir,
I like your teaching style and concepts detailing,
I request you sir please make videos on JEE and UG-NEET
I would be more thankful to you sir 🙏
You are unbelievably great sir !! Sir, i have one doubt. can a static electric field create a magnetic field??? If so the differentiation part of displacement current would be zero!pls reply...
The way you explain the concepts really amazing❤....actually I face difficulty in understanding electrodynamics but ur videos made it easy for me
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Very unique explanation 👌 I ever seen.
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The 'host' for the electric field though in a capacitor with a free space dielectric.........
*_is assumed not to exist_*
and that is a big opportunity in physics. There is a notable wishy-washiness about the constituents of free space (aka the constituents of the vacuum) in physics history
In our EE and physics courses in college, we were taught "electromagnetic waves do not need a medium to propagate"
or in other words, "space is EMPTY"
We carefully note that, in order to manifest the changing electric fields in the vacuum dielectric between the capacitor plates, THERE MUST BE A 'HOST' MEDIUM
Why?
1) electric fields fall off quickly with distance
2) magnetic fields also fall off quickly with distance
3) there are alternating magnetic fields, and there are alternating electric fields striking Earth this very moment...from our own Sun, from distant stars (the light and other frequency electromagnetic waves from them)
The electric charges that originally created those alternating electric and magnetic fields ARE TOO FAR AWAY
The host for the changing electric field in the vacuum dielectric between the capacitor plates must be charge carriers.
Electron-positron pairs for example
This is a very well explained video. May you succeed in life !
this is one of the great explanation or the understanding level is very high for normal avg student
this chapter is a backlog for me so your video not helped me to learn, you made me as to think as of this generation maxwell
aama thala!
Sir why displacement current depends directly on permeability of free space ('Epsilon') but not electric flux
doing great job sir
Quite explanatory; however, it would be even great if you had included the derivation of displacement current by using the equations of capacitors. Namely,
C = Eo A/d(distance between the plates)
Q = CV and V= E d
Q = EoAE and EA : flux
Q = Eo F(flux)
then displacement current : dQ/dt which is Eo dF/dt
Thank you
There is nothing called displacement current. Moving E-field induces moving M-field and vice versa. Moving E-field moves electrons. It is moving E-field which induces M-field not current as current itself is dependent on moving E-field. Since current is proportional to E-field it is used to calculate M-field. Moving E-field applies to both conductor and capacitor.
mahesh i have a doubt.... in the wire we have increasing current ...which means varing magnetic field ..this in turn can produce electric field this electric field can produce displacement current right🤔
and one more ..if there is change in magnetic field then ..opposite emf will be induced know..then opposite current which reduces the source current
😌😌🥳
Best explanation on this planet ( ´◡‿ゝ◡`)
🤝🍻