Magnetism and electromagnetism

  • Thread starter a1densmom
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  • #1
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If you place a metal ring in a region in where a magnetic field is rapidly alternating, the ring may become hot to your touch. Why?


Is it because a changing magnetic field can create electric fields? I AM SO CONFUSED...and it seems so simple?!?!?!?
 

Answers and Replies

  • #2
340
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Well, I wouldn't call it simple.
You have a few more steps to explain why it gets hot.
Any other remarks?
 
  • #3
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can you give me a hint?
 
  • #4
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What does deflecting mean?
 
Last edited:
  • #5
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What does deflecing mean?
I dont know, why?
Hint: what will an electric field do inside of the conductor?
 
  • #6
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I thought that it might have something to do with it... I was lost.

Is it because the voltage is increased? I don't know... I am trying. Thank you for helping me.
 
  • #7
340
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A changing magnetic flux, here you can think of it as just a changing magnetic field, induces an emf in the ring. What will happen in the ring with this induced emf acting?
(Faraday's/Lenz's law is a bit confusing) ; )
 
  • #8
8
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Okay... I got it, I think... Thank you so much. Sorry if I annoyed you.
 

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