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Homework Help: Is charge created?

  1. Aug 2, 2014 #1
    1. The problem statement, all variables and given/known data
    Suppose you have a simple electromagnet. In the middle of the coil you have a magnet oscilllating. Thus, there will be an induced current in the coil. But where the electrons of this current come from? Do they come from the atoms that form the coil?

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Aug 2, 2014 #2

    gneill

    User Avatar

    Staff: Mentor

    Yes. That's why you use a conductor to form the coil; the electrons come from the conduction band of the metal, which are mobile and can (more or less freely) move from atom to atom.
     
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