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Emf physics question

  1. Mar 19, 2009 #1
    1. The problem statement, all variables and given/known data

    The component of the external magnetic field along the central axis of a 50 turn coil of radius 4.7 cm decreases from 1.8 T to 0 T in 4.3 s.

    If the resistance of the coil is 2.8 , what is the magnitude of the induced current in the coil?

    2. Relevant equations



    3. The attempt at a solution

    E=50*(1.8T*pi*.047sqrd)/.43

    I am confused on how you incorporate the resistance
     
  2. jcsd
  3. Mar 19, 2009 #2

    danago

    User Avatar
    Gold Member

    Re: Emf

    The question asks you to find the induced current, not just the emf. How do you find current from emf?
     
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