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Homework Help: Induced emf. Please help

  1. Sep 25, 2005 #1
    Suppose i have a wooden ring and a time varying magnetic field is passed through it. Then will there be induced emf.
     
  2. jcsd
  3. Sep 25, 2005 #2

    Doc Al

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    Staff: Mentor

    Sure. The changing magnetic field creates an induced electric field.
     
  4. Sep 25, 2005 #3

    Tide

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    Homework Helper

    The induced EMF would be present even in a vacuum! :)
     
  5. Sep 26, 2005 #4
    That's what written in the book. The ans is yes. but i am not able to appreciate the fact. WHY?
     
  6. Sep 26, 2005 #5

    Doc Al

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    As I said before, it's the changing magnetic field that induces an electric field. (To understand that better, explore Maxwell's equations.) Perhaps you are thinking of an induced current: that will require a conducting loop. But the electric field is there, conducting loop or not.
     
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