Cells in series | Electric current | Physics | Khan Academy

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  • Опубликовано: 20 янв 2021
  • Let's explore how to calculate the emf and internal resistance of an effective cell when cells are connected in series. Both the emf and the internal resistances add up.
    Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
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    Created by Mahesh Shenoy

Комментарии • 29

  • @Syeda_Fizzah_Azeem
    @Syeda_Fizzah_Azeem Месяц назад +1

    Best channel...tmrw is my As level paper 1..hope it goes well

  • @Crickbravos
    @Crickbravos 3 года назад +9

    You explaination is superb... I really enjoyed it sir.... You have made such a boring topic too too too interesting 🤩

  • @hol-d7734
    @hol-d7734 3 года назад +7

    Feeel agyi bhaiya ji

  • @aanchalroy9585
    @aanchalroy9585 3 года назад +4

    Thank u. Was in need of it

  • @armanpattnaik5687
    @armanpattnaik5687 Год назад +1

    Such a amazing explanation.

  • @nadeemkabir182
    @nadeemkabir182 3 года назад +3

    Your explanation is so much easier than any others youtuber

  • @vipinsingh4673
    @vipinsingh4673 3 года назад +1

    Very thanks

  • @nytsang5247
    @nytsang5247 3 года назад

    best explanation ever ;)

  • @afiatabassum1517
    @afiatabassum1517 2 года назад

    Thank u very much

  • @anilsurjewala3606
    @anilsurjewala3606 3 года назад +2

    Wow

  • @TomKun-he8kj
    @TomKun-he8kj Месяц назад

    Now i understood better than my coaching centre

  • @moratasa9741
    @moratasa9741 3 года назад +1

    can you please do videos on mutual and Self-Inductance

  • @rajatkaul4818
    @rajatkaul4818 3 года назад +8

    2:12 but sir positive charge moves from + to - , wouldn't it be repelled by + terminal.

    • @snehalj4115
      @snehalj4115 3 года назад

      Ye but it will be pulled by the negative terminal of the adjacent cell. So the positive terminal of the first cell will repel it away into the negative terminal of the next cell...

    • @nilasubramani2820
      @nilasubramani2820 3 года назад +2

      ruclips.net/video/gwSbQBo55QI/видео.html this is their video on emf, internal resistance and terminal voltage, i think it might help

    • @tofuthefirst1648
      @tofuthefirst1648 2 года назад

      In short. yes

    • @ajk533
      @ajk533 7 месяцев назад

      bro its not magnet

  • @-BSauravKumar
    @-BSauravKumar 3 года назад +1

    Post next video sir we are eagerly waiting..

  • @geetha-zo9tz
    @geetha-zo9tz 7 месяцев назад

    You're voice is soooooo cute khan🥺❤

  • @adubimpong4095
    @adubimpong4095 3 месяца назад

    Is it the fact that internal resistance generates heat, the principle on which electric iron is built?

  • @ImagineXGames7
    @ImagineXGames7 6 месяцев назад

    😮😮

  • @shaikrafik6300
    @shaikrafik6300 3 года назад +2

    MR SHENOY ...can i pls know which graphical system you use😍

  • @ikrishi_
    @ikrishi_ 5 месяцев назад

    Thank you 😂

  • @hardwork3542
    @hardwork3542 Год назад

    i think your explanation is pretty much reversed ,and wrong .as according to batrery current could not flow if you connect posituve to positive ,i think so .

    • @uniiiverseee
      @uniiiverseee Год назад +2

      Movement of charges is what produce the electric current. So as long as that charged particle is moving in one direction..there will be current

    • @A_info_bhai_R
      @A_info_bhai_R 8 месяцев назад

      Actually it's just an analogy as explained in his earlier video and the positive charge is just an metaphor of the direction of current...