Eddy currents & their applications (& how to reduce them) | Electromagnetic induction | Khan Academy
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- เผยแพร่เมื่อ 13 เม.ย. 2021
- Eddy currents are current loops formed over conductor surfaces due to changing magnetic flux. They are useful in induction heating, levitating, electromagnetic damping, and electromagnetic braking.
They can be minimized by adding slots in the conductor surface & laminating.
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Created by Mahesh Shenoy
If my teacher would have taught me this way i would have been in some electrical company and not writing codes. Awesome video 👍👍
What's wrong with writing code, though?
People from the electrical engineering branch might the same for their programming teachers as well
@@Just_Moh_it I think they're saying they'd have gotten so much interest in electricity and decided to pursue that as a career instead
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I love the way he says “but wait, there’s more “😂😂
I do too
6:53 😂 lmao
he sounds so excited which makes me excited too lmao
Lol
You nailed the intro. I always thought that the induction cooker worked on the principle of conduction!
This channel is one of the reasons why I decided to pursue engineering. This channel made me and still makes me fall in love with physics. Thank you so much:)
mr. sal khan as a student who was on the verge of tears over this, you've made me understand in a way that'll stick with me for a lifetime. thank you for making these videos
The person who made this video is actually Mahesh Shenoy, rather than Sal Khan
Love this. He put so much effort into making the lesson interesting
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Tysm
The way he explains the concept has brought tears to my eyes.
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After a while I thought the video was end , but he told " but wait , there is more ! "
The moment is awesome.
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Same here 😁
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Brilliant. Just brilliant. I spent about 30 minutes touching up on Eddy currents cuz I couldn't quite grasp the concept. Your vid cleared everything
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wow that was awesome it cleared my whole concept of eddy currents
This is awesome, this make me convince myself so much easier.
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Never understood better :) thumbs up for you, teacher
Loved the explanation as alwayss
Love the videos sir. Can you also please add some numericals and questions too? That would get you more views too as that would make your videos a completely free study material.
It's really awesome to hear you.
This guy literally answers my questions immediately I think of them 😅
What an amazing video. Thank you.
I am an analog design engineer. Randomly stumbled upon this video. The kind of insight is really appreciated.
Really amazing concept with you
What an excellent explanation sir!...really lucid,intuitive...loved the way u explained in such a short time, yet completely...kudos to u r efforts...
Loved the explanation best lecture on eddy current
Excellent sir thank you for this experiment
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EXCELLENT 👍 EXPLANATION.THANK U FOR THIS 💪 REALLY GREAT
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amazing style of teaching
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Really great demonstrations and explanation sir🙏
Yesterday I was searching eddy current Khan academy on youtube but there was no video.today you uploaded it.Thx
Me too!
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Science is the real Magic
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Great teachers
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Imagine that TH-cam doesn't exist. How easily accessible these type super conceptual materials are.
Thank u for valuble service ❤
What a teacher!!!!
Thanks a lot teacher🤗
What a explanation 😯❤️
Interesting and lot of awesome information
Really informative
One of the best topic
Good but 2 points: 1) Eddy currents mean CONCENTRIC currents. Hence they require a solid and not a loop conductor .
2) To most effectively reduce them the slits must not leave a border on one side. They should go right through the border.
Agr vessel ke bottom eddy current establish ho jata hai to when we touch vessel to hme current kyo nhi lgta
mind blowing!!!
Brilliant teacher.
I watch your videos to learn how to teach :), I am have done my MSc in physics from IITG and I want to be a professor like you. :)
Awesome teaching ❤️❤️
Pretty pretty awesome 👍🔥
beautiful..!
great explanation. what if the hand fingers are having gold rings? will the ring get hot due to eddy current?
No married man would put his hands on cooker....he lives with one
@@leulunited4913 😂😂
@@leulunited4913 🤣🤣
Thanks a lot.
all doubts solved (thanks )
I LOVE YOUR VIDEOS
OMG Really really great! Please do more videos Mahesh Sir 😎and try to complete all the lessons of 12th std so that we could not only get good marks but gain knowledge of physics ❤️ can i expect a heart from you sir🙂
Excellent job 👍
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Hearty thanks broo🥺🥺🤝
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wonderful
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Excellent
In the eddy current pendulum the speed is lost as the mechanical energy is lost as heat energy due to the eddy currents
Thank u sir
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Thanks sir
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Thankyou
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You can experience the power transmission in your hand if you knit a glove out of iron wire and slip it on your hand then slide lace your hand on the top of the burner.
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Marvelous
Very nice video sir
Do these maglev trains use guided pockets of these electromagnetic fields that are passed down the railings? I'm imagining it as an air hockey rink that manages to adjust airflow to purposefully guide an object of a known position (as the cabs themselves would be locked into place by the many individual currents necessary).
One of the best physics videos out there 😍
Why eddy current doesn't shock you when you touch the pot
0:53 - when his hand is on the induction, it seems to not have been turned on. See the display. While when there's water there's the number that actually does show up when it's turned on.
More seriously though, why do induction stoves have a warning label over them saying "do not touch"?
In the demonstration of magnetic levitation, the current in the ring moves clockwise I suppose.
Wouldn’t the current induced in the ring be going the other way? If the magnetic field is in that direction?
for redusing speed of train and couse increse speed both due to eddy current geting confuse
Sir immediately post RLC circuit sir plz because 15 th March was our board exam physics
nice video
fantastico
why cu and Al pan don't work on induction cooker event if they have high eddy current flowing through them....the heat energy is I^2 rt .
I have the same doubt
If induction cooker uses eddy current to heat, then why copper and aluminum utensils don't heat up in that?