Thought experiment on magnetic field propagation

  • #26
15
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I think I simplified it by taking only a small part, so we can agree on the most basic part of magnetic induction.
Perhaps you cannot explain the whole thing together, that's why you don't want to answer this piece otherwise I don't see why you leave right now if you answered all before.
 
  • #27
15
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If anybody else still reading this thread, could he or she explain the "extra" energy that is required by me if we compare the following two cases.
Moving the magnet inside the coil with normal speed and distances back a forth. (This is harder to push.)
Moving the magnet inside the same coil with the same speed but shorter distances so the magnetic field that is of the induced current arrives back when I already moving the magnet backwards.
If I put in more energy it should come out somewhere. Is it the connected lightbulb? Would the light be more intensive?
Or is it radiated out?
 

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