Dielectrics in capacitors | Circuits | Physics | Khan Academy

Поділитися
Вставка
  • Опубліковано 16 вер 2013
  • How dielectrics function in circuits. By David Santo Pietro. Created by David SantoPietro.
    Watch the next lesson: www.khanacademy.org/science/p...
    Missed the previous lesson? www.khanacademy.org/science/p...
    Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.
    About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
    For free. For everyone. Forever. #YouCanLearnAnything
    Subscribe to Khan Academy’s Physics channel: / channel
    Subscribe to Khan Academy: ua-cam.com/users/subscription_...

КОМЕНТАРІ • 528

  • @felixgonzales9786
    @felixgonzales9786 7 років тому +930

    i learned more in 7 min here than in 3hrs in my physics course thanks

  • @nadiequintero9981
    @nadiequintero9981 4 роки тому +122

    This is the ultimate way to teach physics, with moving images. Most of us aren't capable to follow along a 2 hour long explanation of how this works without any visualization. With a proper illustrarion of the concept, a 6 min video was enough to save my ass from a test! Thank you so so much to everyone who contributes in Khan Academy.

    • @Sambubhai0005
      @Sambubhai0005 3 місяці тому

      Exactly.....they should understand that we want visualisation to understand physics😔.

  • @stepbystepscience
    @stepbystepscience 9 років тому +184

    Excellent, straight forward explanation.

    • @BlueEyes-WhiteDrag0n
      @BlueEyes-WhiteDrag0n 6 років тому

      Hey its THE REAL
      STEP BY STEP SCIENCE !!!

    • @swarnendubanerjee8089
      @swarnendubanerjee8089 3 роки тому

      @@BlueEyes-WhiteDrag0n Kindly follow and subscribe the channel too for better understanding..
      ua-cam.com/video/2HiRqXCcIlM/v-deo.html
      Thanks

  • @mindfreaks1681
    @mindfreaks1681 7 років тому +114

    idk why should we spend money and effort in university and keep listening to old people that they dont know how to deliver the concept to us staying at home and watching this is just perfect to me thx i loved it all :)

    • @mindaugaskazlauskas5530
      @mindaugaskazlauskas5530 5 років тому +9

      Mind Freaks that's right, there should be possibility just to pay for exams. If someone have enough knowledge to pass exams, when they should have possibility to get diploma. Diplomas only shows what person have competence to do whats is waited on it. In old times people had to go to university to get information, these days smart people can get information easily at home.

    • @mohammedalhabshan5238
      @mohammedalhabshan5238 3 роки тому +5

      Now we are staying at home :)

    • @swarnendubanerjee8089
      @swarnendubanerjee8089 3 роки тому

      @@mindaugaskazlauskas5530 Kindly follow and subscribe the channel too for better understanding..
      ua-cam.com/video/2HiRqXCcIlM/v-deo.html
      Thanks

    • @MinkFranchise
      @MinkFranchise 2 роки тому +2

      @@mindaugaskazlauskas5530 Only half correct... it also shows a person had the powers of focus, dilligence, tenacity, and dicipline to complete something complex, organized, and challenging over an extended period of time without flaming out... Many people after cramming for exams on youtube would totally flame out over time...not retain information, and be horrible people to depend on when trying to forward your business.

  • @allenwang3331
    @allenwang3331 10 років тому +309

    This video is a gift from the God.

    • @mechikaboombayah4960
      @mechikaboombayah4960 6 років тому +1

      Allen Wang and the god is KhanAcademy

    • @BlueEyes-WhiteDrag0n
      @BlueEyes-WhiteDrag0n 6 років тому +1

      +Nisa_Tandon Now thats just Sucking his Balls
      😑

    • @smilingkanye7392
      @smilingkanye7392 3 роки тому +1

      YES

    • @swarnendubanerjee8089
      @swarnendubanerjee8089 3 роки тому

      @@mechikaboombayah4960 Kindly follow and subscribe the channel too for better understanding..
      ua-cam.com/video/2HiRqXCcIlM/v-deo.html
      Thanks

    • @swarnendubanerjee8089
      @swarnendubanerjee8089 3 роки тому

      @@BlueEyes-WhiteDrag0n Kindly follow and subscribe the channel too for better understanding..
      ua-cam.com/video/2HiRqXCcIlM/v-deo.html
      Thanks

  • @asmahaque8558
    @asmahaque8558 7 років тому +201

    I LITERALLY CLAPPED AFTER THIS. YOU GODSENT!!!!

    • @jacobvandijk6525
      @jacobvandijk6525 4 роки тому +3

      Doing physics and still thinking there is a god???

    • @alieser7770
      @alieser7770 4 роки тому +10

      @@jacobvandijk6525 that's not the point you edgy atheist

    • @jacobvandijk6525
      @jacobvandijk6525 4 роки тому +1

      @@alieser7770 O, really? ;-)

    • @alieser7770
      @alieser7770 4 роки тому

      @@jacobvandijk6525 unfortunately

    • @shorifulhaque5137
      @shorifulhaque5137 3 роки тому +1

      @@jacobvandijk6525 How ya doin mate. Could you give an insight into how physics disproves the existence of a higher power? Thanks. If everything that begins to exist has a cause and the universe had a beginning, then the universe has a cause. This 'cause' must not have a cause as that would result in an infinite chain that would mean we would never have existed. Therefore, whatever this 'cause' is, we know that a) it is infinite and b)it is uncreated(meaning it has always existed; the concept of time as we know it does not exist for this being).
      I would love to discuss this with you mate let me know if you want to hop on discord.

  • @laiwei5974
    @laiwei5974 9 років тому +189

    I would give you Nobel Teaching prize

    • @swarnendubanerjee8089
      @swarnendubanerjee8089 3 роки тому

      Kindly follow and subscribe the channel too for better understanding..
      ua-cam.com/video/2HiRqXCcIlM/v-deo.html
      Thanks

  • @wernerkroneman
    @wernerkroneman 10 років тому +49

    This was SO simple to understand.

  • @anuraagkaravadi1640
    @anuraagkaravadi1640 8 років тому +83

    one of the best tutorials i have ever watched .Great job!!!

  • @fatimazahra-sq9wy
    @fatimazahra-sq9wy Рік тому +11

    the satisfaction of having all the concepts cleared in just 6 mins is just undescribable ... for the 1st time, this concept got cleared... hats off to u sir😍🥰💯💗❤💝💗💓❤‍🔥💥🔥

  • @xoxo-yp1fc
    @xoxo-yp1fc 5 років тому +24

    Omg this was the best teaching I ever gone through in my life
    Simple
    Neat
    Short period of time
    Amazing

  • @alwaysdisputin9930
    @alwaysdisputin9930 5 років тому +7

    Thanks. That helped me to understand things where other videos failed:
    The capacitor has 2 plates. The battery pushes electrons onto 1 of the plates until it's crammed with electrons & the battery can't push any more on.
    Inserting a dielectric increases capacitance because
    1) the electrons (in the dielectric's atoms) lean towards the positive plate of the capacitor
    2) therefore, each atom in the dielectric becomes polarised = 1 side is negative & the other side is positive
    3) near the positive plate, there are some dielectric atoms. The negative sides of these atoms cancels out some of the positive plates positive-ness
    4) near the negative plate, there are some dielectric atoms. The positive sides of these atoms cancels out some of the negative charge on the negative plate
    6) thus the negative plate becomes less negative
    7) the battery is now able to push more electrons onto the negative plate - thus the capacity of the negative plate to hold electrons has increased

  • @VG__
    @VG__ 2 роки тому +3

    I am blown away😯Is this how much simple, intersting and LOGICAL physics is?🥺omg, why teachers let us just mug up those sophisticated mathematical equations whn physics can be explained this way🥺🥺🥺❤️❤️❤️You are a gem I tell u. Thankyou🙏

  • @sujayhedau8725
    @sujayhedau8725 9 років тому +19

    you explained this better than all of my teachers combined.

  • @macovv7320
    @macovv7320 3 роки тому +4

    There must be a noble teaching prize now a days (because I think many teachers who don't know how to teach have become teachers) and this guy, David, must be, along with sal, among the first ones to get it.

  • @NoNTr1v1aL
    @NoNTr1v1aL 8 років тому +22

    What is the background music? It sounds awesome with your explanation!

  • @ProtoG42
    @ProtoG42 9 років тому +22

    Great explanation!

  • @TheMaskedOne2G
    @TheMaskedOne2G 8 років тому +28

    now this is some real skilled explanation!
    thank you, David Santo Pietro.

    • @swarnendubanerjee8089
      @swarnendubanerjee8089 3 роки тому

      Kindly follow and subscribe the channel too for better understanding..
      ua-cam.com/video/2HiRqXCcIlM/v-deo.html
      Thanks

  • @Carito680
    @Carito680 5 років тому

    I've been studying this for 4 hours and needed a better way than just reading the textbook. I completely followed and I feel so much more refreshed. Thank you!

  • @tejasmd8143
    @tejasmd8143 3 роки тому +2

    7 years later, you're still helping a lot of students. What's better news?

  • @Standard_Logic
    @Standard_Logic 8 років тому +1

    I like how fast you speak and the way you present the material, it's very easy to follow. Thank you.

  • @ayankhan8204
    @ayankhan8204 3 роки тому +3

    Ooohhh bhai.. ULTIMATE !!! The real definition of TEACHING;)

  • @ooo-sg1xm
    @ooo-sg1xm 7 років тому

    I spent hours trying to understand this but now I fully understand it in under 7 mins!!! Feels good man. Thank you for the awesome video :)

  • @shitstapper
    @shitstapper 8 років тому

    thank you. your work is greatly appreciated by those studying higher level physics. you are the silent hero....

  • @AnandBaburajan
    @AnandBaburajan 7 років тому +15

    How does he do it? So perfect!

  • @taniaflores7240
    @taniaflores7240 4 роки тому

    Amazing explanation! I had struggled with this concept and now I finally understand. Thank you so much, sir!

  • @saadsouabni
    @saadsouabni 3 роки тому

    Best explanation of dielectrics I've seen and I've been in this field for years!

  • @CodecFace
    @CodecFace 9 років тому

    Thank you! I thought this process into the ground and the one thing I was missing was that some of those charges were canceling, which explained everything. Rad vid!

  • @dimaabed9768
    @dimaabed9768 7 років тому

    Thank you very much! I definitely feel better right now towards my physics exam tomorrow because of this great video! Hope I'll do good and if I do, credits will be to you Mr.SantoPietro!

  • @rumeenchowdhury6976
    @rumeenchowdhury6976 4 роки тому +1

    It’s a great video! Really cleared my confusions!

  • @majidnesar
    @majidnesar 5 років тому

    I've been turning over the pages of my physics textbook since a week, until I was gifted with this VIDEO.
    I actually learned the concept in 7mins which I was wondering about for whole week♥️♥️♥️

  • @robertgalligan7273
    @robertgalligan7273 3 роки тому

    Hello,
    I am currently doing a module as part of my electromechanical course and this was an amazing video. It was simple to follow and very informative. Thank you very much.

  • @sweetttpeaches
    @sweetttpeaches 5 років тому

    Absolutely wonderful conceptual explanation; these are so hard to find nowadays. Thank you so much.

  • @VardhanMittal
    @VardhanMittal 2 роки тому +1

    i was full confused with this topic very nice explanation man!
    thank you for adding such a nice value in my life!

  • @srinuchandaka3959
    @srinuchandaka3959 3 роки тому +2

    Hey❕
    You literally cleared all my doubts😃
    *Thank You Infinity Times*

  • @robertbatista50
    @robertbatista50 Рік тому

    Wow! Just wow. While there are many videos explaining capacitors and Leyden jars, this is the best at explaining the derivation of the formula.

  • @ghsbharathiyarnagar8326
    @ghsbharathiyarnagar8326 6 років тому

    This is absolutely amazing .I totally understand it now. this is so satisfying. Thank you soo much.

  • @angusquigley3713
    @angusquigley3713 4 роки тому

    Awesome video! This cleared up a problem I had in class today.

  • @arijitmondal28
    @arijitmondal28 8 років тому +2

    Excellent simple explanations.

  • @jaime_coca
    @jaime_coca 4 роки тому

    Am not normally a big fan of Khan Academy explanations but I must say this video is top-notch. Thanks!

  • @craigslinger43
    @craigslinger43 7 років тому

    Brilliant video; well explained and easy to understand. Thanks a lot!

  • @anuradhadevi1824
    @anuradhadevi1824 4 роки тому

    So much clarity....u made things so easy for me...thank u very much sir

  • @randomstuffswithrrd
    @randomstuffswithrrd 4 роки тому +2

    Well done I have my entrances next year... And Khan Academy is essential to quickly revise up things ✌️👁️

  • @lamawehbe1045
    @lamawehbe1045 9 років тому +2

    So helpful! Thank you very much ☺

  • @mrbeanseries9932
    @mrbeanseries9932 5 років тому +1

    speechless! fabolous explanation!
    Really gr8

  • @shivani3279
    @shivani3279 9 років тому +2

    really very nicely explained....thank you..

  • @achilleswang2255
    @achilleswang2255 8 років тому +1

    It is so clearly explained!!!

  • @crow1628
    @crow1628 Рік тому

    this made so easy to understand, it's insane, thank you for your work!

  • @asthatiwari2648
    @asthatiwari2648 4 роки тому

    Got my concept cleared..loved the video...also the voice was like u r singing a song...so it was more wonderful to study

  • @aryensujjan
    @aryensujjan 7 років тому

    awesome video especially that part you explained how dielectric cancel charges on plates is just amazing

  • @omarthabit99
    @omarthabit99 9 років тому +1

    im impressed .. really thank you for this amazing vids

  • @cbbhvjc
    @cbbhvjc 4 роки тому

    Best explanation I have seen for the purpose of a dielectric!

  • @hemasingh5542
    @hemasingh5542 8 років тому

    awesome explanation.I've asked several teachers but no one made me understand so nicely.

  • @dominicestebanrice7460
    @dominicestebanrice7460 7 місяців тому +1

    Astonishingly informative video!

  • @awesomelily2896
    @awesomelily2896 8 років тому

    outstanding video....superb work guysss..realllyy what a explanation n soo interesting 2 see..watched all in 1 go ...

  • @farhadabbasi4553
    @farhadabbasi4553 8 років тому +1

    Great!The best explanation.

  • @ferociouswaves
    @ferociouswaves 10 років тому

    I love the way you pronounce the word "Farad". Thank you so much for this very informative video!

  • @nasimaakter8832
    @nasimaakter8832 Рік тому

    Best ever explanation! Simple but Complete!

  • @Rsingh1
    @Rsingh1 6 років тому +2

    Vvvv'vvvvvvvvvvvv nice....... Perfect absolutely answered each of my questions... .. . . . .i just want to this video a no of likes.............

  • @XCeedSaid
    @XCeedSaid 5 років тому

    Clear concise explanations, thank you.

  • @pasta7396
    @pasta7396 2 роки тому

    Thank you so much, I feel that learning can actually be fun when it is taught like this

  • @nitinpawar47
    @nitinpawar47 8 років тому +2

    Amazing... wonderful explanation.... Thank you..... :)

  • @brade469
    @brade469 9 років тому

    These videos are top shelf. Thank you so much. Very...very well done.

  • @fredk9531
    @fredk9531 8 років тому

    The best explanation that I have ever came across!

  • @illinoska
    @illinoska 5 років тому

    Very simple and easy to understand. Thanks!

  • @TheAITools47
    @TheAITools47 4 роки тому

    this is awsome ,really really brief and outsstanding ?

  • @mubarakabdullahi5068
    @mubarakabdullahi5068 Рік тому

    This was such a wonderful and succinct explanation. THank you!!!

  • @thandiferris954
    @thandiferris954 8 років тому +2

    Differently... This was a great vid..

  • @kishtarapu
    @kishtarapu 5 років тому

    Excellent explanation.
    Simple and. Straight forward.

  • @vojtatesar9239
    @vojtatesar9239 2 роки тому

    I have needed this answer for about year but I haven't found it until now, thanks a lot!

  • @mndnw_scramblr
    @mndnw_scramblr 9 років тому

    this is really great! helped me in my report

  • @FabihaAnbar
    @FabihaAnbar Рік тому

    This is so helpful ! Learnt more in 10mins than all my school classes combined

  • @Harsh-zj7lm
    @Harsh-zj7lm 6 років тому

    Thank You So much, just what i needed after all these time.

  • @pawankumarofficial
    @pawankumarofficial 5 років тому

    It's simple to understand ......best tutorial ever👍👍👍👍👍

  • @momoabdul2755
    @momoabdul2755 5 років тому

    Interesting video... Good job... Thanks for helping my understanding

  • @leamsi4ever
    @leamsi4ever 7 років тому

    Are there any other electrical playlists with this instructor? I have been watching the Khan Academy Electrical Engineering videos but those went over my head, this guy and his diagrams are very easy to understand.

  • @alishaparveen1045
    @alishaparveen1045 6 років тому

    Really good video..liked it so much..simple explanation but clear.

  • @princesspat5239
    @princesspat5239 3 роки тому

    Thank you, i didnt understand capacitors before and how it connected to the formula : this cleared my mind

  • @mohammedhussein5806
    @mohammedhussein5806 8 років тому +1

    the best explanation of capacitors

  • @rajbhar007
    @rajbhar007 5 років тому

    Explained like a Boss....!!!
    Thanks a lot.

  • @tejakiran1577
    @tejakiran1577 6 років тому

    Thanks a lot .... U made me understood the clearcut idea behind dielectrics

  • @Arpit.singh.
    @Arpit.singh. 4 роки тому

    Amazed by ur explanation. I hope you contribute more

  • @shreyakommuri3929
    @shreyakommuri3929 5 років тому +1

    Speechless man! Really.

  • @akshatrastogi9063
    @akshatrastogi9063 2 роки тому

    This is excellent, absolutely excellent!

  • @mickeychan2007
    @mickeychan2007 2 роки тому

    This is what I call precise and professional.

  • @aiswaryathilakan2588
    @aiswaryathilakan2588 3 роки тому

    That was the best explanation l have ever heard. Thank u for ur efforts

  • @bondsongmusic
    @bondsongmusic 2 роки тому +1

    Thanks for this very clear explanation.

  • @nagasrinu3836
    @nagasrinu3836 3 роки тому

    Perfect explanation... simply superb..

  • @bishnudevchaudhary1532
    @bishnudevchaudhary1532 9 років тому

    Really nice video. It help me to memorize about dielectric

  • @amandamonteiro5308
    @amandamonteiro5308 3 роки тому

    wow, I'm incredibly choqued! this video is good, thanks!!!

  • @yeleeena
    @yeleeena 7 років тому +6

    Love the music in background (A)

  • @VishnuPriya-gd4vp
    @VishnuPriya-gd4vp 3 роки тому

    It's extraordinary explanation...thank you so much for this video...

  • @mohamedriazurrahman1456
    @mohamedriazurrahman1456 5 років тому

    extraordinary explanation
    u r great crystal clear explanation
    hats off .....

  • @zaheersuhabuth2677
    @zaheersuhabuth2677 5 років тому

    Very well explained. If I knew this video before, I would never entered that old man's 3 hours lecture!

  • @rohmakhan5125
    @rohmakhan5125 6 років тому

    Thanks for making it so simple ☺

  • @MC-nq8dg
    @MC-nq8dg 10 років тому

    This was so helpful omg thank you

  • @TheCentral99
    @TheCentral99 10 років тому

    made so much sense! thanks alot!

  • @iPokerrr
    @iPokerrr 7 років тому

    Great explanation!
    Thank you! :)

  • @yiiyatschan1395
    @yiiyatschan1395 3 роки тому

    Superb explanation. Thank you.

  • @furiousarpan7473
    @furiousarpan7473 Рік тому

    What an incredible explanation mannn, hats off