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Show that terminal velocity equals

  1. Mar 22, 2009 #1
    1. The problem statement, all variables and given/known data

    A conducting rectangular loop of Mass M and resistance R and length l and width w falls from rest into a magnetic field B as shown. During the time interval before the top edge of the loop reaches the field, the loop approaches the terminal speed v T .

    Show that Terminal velocity (Vt) = MgR
    B2w2



    2. Relevant equations

    ???

    3. The attempt at a solution

    HAve Nooooo Clue!
     
  2. jcsd
  3. Mar 22, 2009 #2
    it should be Vt = mgR/B2w2
     
  4. Mar 22, 2009 #3
    Use the formula for the force on a current carrying wire in a uniform magnetic field where the wire is moving with respect to the magnetic field.
     
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