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Abhisar

  • one year ago

A and B are two wire carrying a current I in the same direction. X and Y are two electron beams moving in the same direction. There will be, attraction between A and B, repulsion between x and y @IrishBoy123

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  1. Abhisar
    • one year ago
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    |dw:1443072087299:dw|

  2. Abhisar
    • one year ago
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    I get the attraction between A and B but how will be there a repulsion between X and Y?

  3. ChantySquirrel1129**
    • one year ago
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    Because physics...........

  4. ChantySquirrel1129**
    • one year ago
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    lol honestly I can't be of much halp here. I just started physics :o

  5. dan815
    • one year ago
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    hm

  6. dan815
    • one year ago
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    what do you think the big difference is between current carrying wire and electron beam

  7. dan815
    • one year ago
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    |dw:1443072704899:dw|

  8. dan815
    • one year ago
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    @Jemurray3

  9. Abhisar
    • one year ago
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    Actually field should be in reverse direction for electron beam because in that case the direction of current is opposite.|dw:1443072865014:dw|

  10. dan815
    • one year ago
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    no better person to ask but him right now

  11. dan815
    • one year ago
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    oh right current is other sside then that makes sense

  12. Abhisar
    • one year ago
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    So, according to me there will be attraction between A and B and X and Y

  13. dan815
    • one year ago
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    lets suppose A and B are infinite wires

  14. Abhisar
    • one year ago
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    Repulsion between X and Y is only possible if somehow the repulsive force due to electric charge is greater than magnetic force.

  15. dan815
    • one year ago
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    i dont know ask jem

  16. Abhisar
    • one year ago
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    Thanks doe c;

  17. dan815
    • one year ago
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    |dw:1443073155274:dw|

  18. IrishBoy123
    • one year ago
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    the answer to this lies is special relativity. i can reproduce it off the top of my head but there is a one minute physics that tries to explain it.

  19. IrishBoy123
    • one year ago
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    founf it, sorry, it was by Veritasium but the art is from the 1 min physics guy https://www.youtube.com/watch?v=1TKSfAkWWN0

  20. Abhisar
    • one year ago
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    WoW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I never knew this..... Thank you so much but my answer still remains unanswered :(. I am not able to understand why two electron beams will repel each other when moving in same direction. Shouldn't they attract each other because they constitute current in same direction and current moving in same direction attract each other.

  21. anonymous
    • one year ago
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    It's a simpler matter than that. Electrons are negatively charged, so if you have two beams traveling near each other they will repel. That will happen whether the beams are traveling in the same direction or not. Because there is a current there is also a magnetic field being generated, but the force due to the magnetic field is vastly smaller than the electrostatic force so it doesn't really matter. In the case of a current-carrying wire, the particles that are moving are the electrons but the wire is full of stationary protons, so the wires are neutral and there's no repulsion. In this case, the generated magnetic field is the only thing acting on the wires and so you get attraction if the currents are in the same direction and repulsion if they're traveling in opposite directions. As a reference to special relativity - as it turns out, due to relativistic effects it turns out that the wires don't see each other as *exactly* electrically neutral, which leads to an attraction between them. This is one of the first simple hints that magnetism is really just an effect of special relativity, and that electricity and magnetism are just different ways to see the same thing.

  22. The_Beast_Eli
    • one year ago
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    What they said

  23. Abhisar
    • one year ago
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    Thanks @Jemurray3 , that's what I was looking for..

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