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Homework Help: Magnetic induction problem

  1. Aug 28, 2010 #1
    1. The problem statement, all variables and given/known data
    Which of the following action would cause and e.m.f. induced in the conductor?
    1. The rod is rotating about an axis parallel to the B field through one end of the rod.
    2. The rod is rotating about an axis perpendicular to the B field through one end of the rod.
    3. The rod is rotating about an axis through the mid point perpendicular to the B field.


    3. The attempt at a solution
    I know 1 will have a voltage build up and 3 will not but i have trouble understanding 2, the answer said there is emf in rod 2.
     
  2. jcsd
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