Eddy currents & their applications (& how to reduce them) | Electromagnetic induction | Khan Academy

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

Пікірлер: 192

  • @idektega4271
    @idektega42712 жыл бұрын

    I love the way he says “but wait, there’s more “😂😂

  • @soniagupta2258

    @soniagupta2258

    2 жыл бұрын

    I do too

  • @mujahidmirza6469

    @mujahidmirza6469

    Жыл бұрын

    6:53 😂 lmao

  • @anilynnn

    @anilynnn

    Жыл бұрын

    he sounds so excited which makes me excited too lmao

  • @Stan49

    @Stan49

    6 ай бұрын

    Lol

  • @babayaga9805
    @babayaga98052 жыл бұрын

    If my teacher would have taught me this way i would have been in some electrical company and not writing codes. Awesome video 👍👍

  • @Just_Moh_it

    @Just_Moh_it

    2 жыл бұрын

    What's wrong with writing code, though? People from the electrical engineering branch might the same for their programming teachers as well

  • @kalpashri0820

    @kalpashri0820

    2 жыл бұрын

    @@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

  • @ManishSingh-jz2hx

    @ManishSingh-jz2hx

    2 жыл бұрын

    @@kalpashri0820 Are you a fellow CBSE board student like me? If so, all the best to you buddy 👍

  • @kalpashri0820

    @kalpashri0820

    2 жыл бұрын

    @@ManishSingh-jz2hx yes I am, thankss and all the best to you too!

  • @vishaljoy6802

    @vishaljoy6802

    2 жыл бұрын

    @@kalpashri0820 Yo I just started 12th grade!!! You guys must have ur comp exam on monday!!! Good luck and good luck for jee too!!!

  • @beingmyself6163
    @beingmyself61632 жыл бұрын

    You nailed the intro. I always thought that the induction cooker worked on the principle of conduction!

  • @shubhasrees5654
    @shubhasrees56542 жыл бұрын

    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:)

  • @divyatmikam7018
    @divyatmikam70182 жыл бұрын

    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

  • @isaachester8475

    @isaachester8475

    2 жыл бұрын

    The person who made this video is actually Mahesh Shenoy, rather than Sal Khan

  • @mahima979
    @mahima9792 жыл бұрын

    Love this. He put so much effort into making the lesson interesting

  • @Medtenzin13
    @Medtenzin132 жыл бұрын

    Your teaching methods are awesome sir . It’s always good to know that with your videos physics is much more simpler and interesting ❤️ Tysm

  • @atulrawat4559
    @atulrawat45592 жыл бұрын

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  • @ManishSingh-jz2hx
    @ManishSingh-jz2hx2 жыл бұрын

    The way he explains the concept has brought tears to my eyes.

  • @lukemaibach7657
    @lukemaibach7657 Жыл бұрын

    I have been looking at videos for about 2 hours and this is 1000% better than any other video i found. I looked down at the author and was like "oh yeah, of course it's this good, its Khan". You guys never slack. Well done.

  • @bmilano1580
    @bmilano15802 жыл бұрын

    Nice! Thanks for all the examples!

  • @BiplobHossainSorker
    @BiplobHossainSorker2 жыл бұрын

    After a while I thought the video was end , but he told " but wait , there is more ! " The moment is awesome.

  • @HypnosisBear
    @HypnosisBear2 жыл бұрын

    I like how much passionate he is while teaching. This was so awesome. Great 👍

  • @sanchi7410
    @sanchi74102 жыл бұрын

    This channel increases my interest in physics everytime i watch these videos

  • @Saadkhan-th4bz
    @Saadkhan-th4bz2 жыл бұрын

    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

  • @rajibadhya8653
    @rajibadhya86532 жыл бұрын

    Sir ... This is awasome ... very much helpful for understanding the concept

  • @jaishivshambhu1008
    @jaishivshambhu10087 ай бұрын

    Wow! you are giving the great knowledge in lesser time & in better way , AMAZING!

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    @raaniyahbabur528 Жыл бұрын

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  • @tgsseveryflavourbeans4904
    @tgsseveryflavourbeans4904 Жыл бұрын

    Why didn't I watch it sooner!! This is awesome! Visualization of the things! Thanks Sir!💕

  • @_rafiaahmad
    @_rafiaahmad2 жыл бұрын

    What a great teaching method 👏 God bless you sir !

  • @studentofscience860
    @studentofscience8602 жыл бұрын

    Thank you sir. Finally got it. 😊☺️ You have the ability to teach the any lesson ,in a easier way. Continue uploading more videos . Good luck.🤞

  • @olivernardbagay318
    @olivernardbagay3182 жыл бұрын

    Great combination of explanation and demonstration.

  • @patrickjacobsen7805
    @patrickjacobsen78052 жыл бұрын

    I love your delivery of the material thank you

  • @marwansallouta2101
    @marwansallouta2101 Жыл бұрын

    Very well explained, highly appreciated. Thank you.

  • @gagans7180
    @gagans71802 жыл бұрын

    wow that was awesome it cleared my whole concept of eddy currents

  • @bitno4096
    @bitno40962 жыл бұрын

    This is awesome, this make me convince myself so much easier.

  • @jatinverma6759
    @jatinverma67592 жыл бұрын

    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.

  • @patakotisrinivas1918
    @patakotisrinivas19182 жыл бұрын

    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...

  • @MehediHasan-ov9zc
    @MehediHasan-ov9zc Жыл бұрын

    It's really awesome to hear you.

  • @vansh-20
    @vansh-202 жыл бұрын

    Never understood better :) thumbs up for you, teacher

  • @dishajariwala9741
    @dishajariwala9741 Жыл бұрын

    Loved the explanation as alwayss

  • @guillaume6373
    @guillaume63732 жыл бұрын

    Fantastic, love your enthusiasm and explanations :))

  • @suryanshkhatri7929
    @suryanshkhatri79293 жыл бұрын

    I'm eagerly waiting for lectures of the whole chapter to be uploaded! I just love your way of teaching!

  • @justlearn3444

    @justlearn3444

    3 жыл бұрын

    Same here 😁

  • @stefanopassiglia
    @stefanopassiglia5 ай бұрын

    What an amazing video. Thank you.

  • @allrounder8771
    @allrounder87713 ай бұрын

    sir thank u so so so so much, u really made me fell in love with the science happening around us , kuddos to your brilliant animation explanation ,,,,

  • @manasishivakumar9203
    @manasishivakumar9203Ай бұрын

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  • @Xyzur00
    @Xyzur00 Жыл бұрын

    Loved the explanation best lecture on eddy current

  • @RaviKumar-sw8dh
    @RaviKumar-sw8dh2 жыл бұрын

    Really amazing concept with you

  • @sanskrutibedasur8594
    @sanskrutibedasur85942 жыл бұрын

    Excellent sir thank you for this experiment

  • @dwarakadeeshkadiyala3207
    @dwarakadeeshkadiyala32073 жыл бұрын

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  • @ADI_RabeeshG-rc7mk
    @ADI_RabeeshG-rc7mk Жыл бұрын

    I am an analog design engineer. Randomly stumbled upon this video. The kind of insight is really appreciated.

  • @hdkrishna1
    @hdkrishna111 ай бұрын

    Really great demonstrations and explanation sir🙏

  • @kef5885
    @kef5885 Жыл бұрын

    Wonderful, amazing explanation Science is the real Magic Great Channel Great teachers

  • @tamratchurko1077
    @tamratchurko10772 жыл бұрын

    What a teacher!!!!

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    @user-dy5ho4sj2w3 жыл бұрын

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    @factsss73 жыл бұрын

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  • @punitachadha1137
    @punitachadha11373 жыл бұрын

    amazing style of teaching

  • @mujahid1551
    @mujahid15512 жыл бұрын

    What a explanation 😯❤️

  • @fardanyahyakhan2562
    @fardanyahyakhan2562 Жыл бұрын

    mind blowing!!!

  • @ur_favourite._
    @ur_favourite._2 күн бұрын

    Thank you for this

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    @homemobile83629 ай бұрын

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    @sadab5692 Жыл бұрын

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  • @rakesharora7714
    @rakesharora77149 ай бұрын

    Thanks a lot.

  • @IrfanUllah-yl9nz
    @IrfanUllah-yl9nz8 ай бұрын

    Really informative

  • @ricardomosci4098
    @ricardomosci40987 ай бұрын

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  • @tasty_ai
    @tasty_ai Жыл бұрын

    Interesting and lot of awesome information

  • @riyarai1086
    @riyarai10862 жыл бұрын

    Thanks a lot teacher🤗

  • @tanmayking3252
    @tanmayking32522 жыл бұрын

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  • @ayoife3482
    @ayoife34823 ай бұрын

    This guy literally answers my questions immediately I think of them 😅

  • @Abhi2822new
    @Abhi2822new Жыл бұрын

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  • @vjadarsh9542
    @vjadarsh9542 Жыл бұрын

    Hearty thanks broo🥺🥺🤝

  • @pratikshah8225
    @pratikshah8225 Жыл бұрын

    Excellent job 👍

  • @tejasvikumar2380
    @tejasvikumar23809 ай бұрын

    Awesome 👍👍👍👍 Way to teach

  • @user-ts8fj3px4m
    @user-ts8fj3px4m Жыл бұрын

    Awesome teaching

  • @neerajmenon8107
    @neerajmenon81072 жыл бұрын

    beautiful..!

  • @brynt1758
    @brynt17583 жыл бұрын

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    @yaqubahmed2395 Жыл бұрын

    Imagine that KZread doesn't exist. How easily accessible these type super conceptual materials are.

  • @shivampandey2545
    @shivampandey25453 жыл бұрын

    all doubts solved (thanks )

  • @messi75895
    @messi758957 ай бұрын

    I swear God send this guy

  • @ececompetitiveexampreparat5765
    @ececompetitiveexampreparat57652 жыл бұрын

    Best Explanation

  • @qualquan
    @qualquan2 жыл бұрын

    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.

  • @pushpendrasinghshaktawat6241

    @pushpendrasinghshaktawat6241

    2 жыл бұрын

    Agr vessel ke bottom eddy current establish ho jata hai to when we touch vessel to hme current kyo nhi lgta

  • @Akshatpokharia
    @Akshatpokharia Жыл бұрын

    just wow

  • @HelloAayush
    @HelloAayush2 жыл бұрын

    Thankyou

  • @boody_tube
    @boody_tube6 ай бұрын

    Thanks sir

  • @vedantgandhi1721
    @vedantgandhi17212 жыл бұрын

    thanks

  • @seeratkular3564
    @seeratkular35643 жыл бұрын

    wonderful

  • @b.srinivas9567
    @b.srinivas95673 жыл бұрын

    Thank u sir

  • @satabdikakati5759
    @satabdikakati5759 Жыл бұрын

    Marvelous

  • @huskiehuskerson5300
    @huskiehuskerson53002 жыл бұрын

    I love this guy 😆😄

  • @yummyandhealthyrecipes3305
    @yummyandhealthyrecipes33052 жыл бұрын

    Excellent

  • @yasmeenghattas9786
    @yasmeenghattas97862 жыл бұрын

    Great video ❤👍👍👍

  • @abdulhanan4225
    @abdulhanan42252 жыл бұрын

    Amazing 👏

  • @feelingzhakkaas
    @feelingzhakkaas3 жыл бұрын

    great explanation. what if the hand fingers are having gold rings? will the ring get hot due to eddy current?

  • @leulunited4913

    @leulunited4913

    2 жыл бұрын

    No married man would put his hands on cooker....he lives with one

  • @aasmamazumdar2750

    @aasmamazumdar2750

    2 жыл бұрын

    @@leulunited4913 😂😂

  • @sreejithd7517

    @sreejithd7517

    2 жыл бұрын

    @@leulunited4913 🤣🤣

  • @DAarthiP
    @DAarthiP2 жыл бұрын

    Very nice video sir

  • @rishabhkumar4593
    @rishabhkumar45933 жыл бұрын

    Yesterday I was searching eddy current Khan academy on youtube but there was no video.today you uploaded it.Thx

  • @tasneem6427

    @tasneem6427

    3 жыл бұрын

    Me too!

  • @Bird-0
    @Bird-0 Жыл бұрын

    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).

  • @preethig4907
    @preethig49073 жыл бұрын

    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🙂

  • @user-me2mq6gv2x
    @user-me2mq6gv2x5 ай бұрын

    for redusing speed of train and couse increse speed both due to eddy current geting confuse

  • @pawankumar-ir1fd
    @pawankumar-ir1fd3 жыл бұрын

    nice video

  • @paulboro5278
    @paulboro52783 жыл бұрын

    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. :)

  • @husamuddinhajuri9996
    @husamuddinhajuri9996 Жыл бұрын

    In the eddy current pendulum the speed is lost as the mechanical energy is lost as heat energy due to the eddy currents

  • @oddjobbob8742
    @oddjobbob87422 жыл бұрын

    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.

  • @4leafclover202
    @4leafclover2022 жыл бұрын

    Wouldn’t the current induced in the ring be going the other way? If the magnetic field is in that direction?

  • @malekqaddarah
    @malekqaddarah6 ай бұрын

    Link to lenz law?

  • @goddess_ofchaos
    @goddess_ofchaos2 жыл бұрын

    but if current produces heat, how do we not feel the heat of the coil inside the induction plate as we put our hand on it? Or do you feel it a little bit? or is the coil designed in a way that there are a lot of air slots between each wire?

  • @rifat6049
    @rifat60492 жыл бұрын

    fantastico

  • @k2n3l
    @k2n3l Жыл бұрын

    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"?

  • @ahmedatifabrar7698
    @ahmedatifabrar7698 Жыл бұрын

    In the demonstration of magnetic levitation, the current in the ring moves clockwise I suppose.

  • @tasneemkt4797
    @tasneemkt47973 жыл бұрын

    So if i touch the pot when it's on, will i get shocked? if the eddy current is running through the pot there's is a chance, isn't it? (i don't have any of this)

  • @KhanAcademyIndiaEnglish

    @KhanAcademyIndiaEnglish

    3 жыл бұрын

    When the water was boiling, I touched the top. It was neither hot nor shocking. It makes sense because most of the eddy currents are at the base, and the heat is quickly transferred to the water. But I wouldn't recommend doing any of these! Be safe!

  • @aniketprasad7700

    @aniketprasad7700

    3 жыл бұрын

    So In order to get shocked we should touch at the base ?? I am soo curious todo this experiment since I have induction at my home 😅😁😁

  • @shahidanowar1614

    @shahidanowar1614

    2 жыл бұрын

    @@aniketprasad7700 so how did the experiment go? Are you still alive?😄

  • @aniketprasad7700

    @aniketprasad7700

    2 жыл бұрын

    Yeah broo

  • @hailemariamlemma6767
    @hailemariamlemma67673 ай бұрын

    GOD BLESS