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Homework Help: Electromegnetic induction unerstanding changing flux

  1. Mar 25, 2009 #1
    1. The problem statement, all variables and given/known data
    In this problem, you will use Lenz's law to explore what happens when an electromagnet is activated a short distance from a wire loop.
    You will need to use the right-hand rule to find the direction of the induced current.

    Finally, the switch on the electromagnet is reopened. The magnitude of the external magnetic flux through the wire loop ______ (A. increases, B. decreases, C. remains constant), and there is _______ (A. zero, B. a clockwise, C. a counterclockwise) current induced in the loop (as seen from the left).
  2. jcsd
  3. Mar 25, 2009 #2


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    Homework Helper

    Welcome to PF.

    What are your thoughts on how to solve it?
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