Induction And Relativity

  • #1

Main Question or Discussion Point

I have heard multiple explanations of how relativity causes magnetism, and I think I understand it enough to puzzle it out in my head, but what I don't get is how moving a magnet in relation to a wire induces a current if the electrons are already moving in relation to the wire. Can somebody explain? I am new to this...
 

Answers and Replies

  • #2
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Before I spend a lot of time trying to explain let me be sure I understand your question...

Suppose you have 2 parallel wires 1 meter apart. Wire 1 carries a current and so is your 'magnet'. As the wire 2 moves towards wire 1 a voltage will be induced into wire 2. If there is a path for current to flow that voltage will result in current.

Are you asking why the voltage is induced or what would be happening if wire 2 were already carrying a current in the direction of the voltage?
 
Last edited:
  • #3
sorry for the time,

if the electrons in wire 2 are already moving in relation to the electrons in wire 1, then why does changing their relative motion induce an electric current?
 

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