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Electric fields

  1. Sep 2, 2009 #1
    When a DC flows through a wire, does the electric field vary?
    If a changing electric flux produces a magnetic field, then electric field will have to vary constantly, right?
    If that's not the case, then what produces a magnetic field around a conductor carrying current?
     
    Last edited: Sep 2, 2009
  2. jcsd
  3. Sep 2, 2009 #2
    Yes, that is correct.

    The motion of the electrons is what causes the magnetic field to appear.
     
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