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Electromagnetic induction (production of emf)

  1. Apr 28, 2014 #1
    1. The problem statement, all variables and given/known data

    the ans is C for this question. i really have no idea , van someone explain please?

    2. Relevant equations



    3. The attempt at a solution
     

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  2. jcsd
  3. Apr 28, 2014 #2

    BvU

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    Not good enough. Read the guidelines.

    Helping you at this point isn't allowed according to PF rules.
     
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