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Homework Help: Quick question on emf

  1. Aug 17, 2009 #1
    If there is electromagnetic induction on an object that has no resistance, will an emf be produced? I know that no current would flow but is emf produced?

  2. jcsd
  3. Aug 17, 2009 #2
    No current, no emf!!!
  4. Aug 17, 2009 #3


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    This is how I think about it. If there is a changing magnetic flux in a region of space, there will be an induced electric field in that region, even if there is vacuum there. Now if you happen to place a conductor in that region, this induced electric field will push all the free electrons in the conductor around as if they were connected to a battery with an emf.
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