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Homework Help: Estimate the magnitude of the torque the large loop exerts on the smaller one.

  1. Aug 8, 2011 #1
    1. The problem statement, all variables and given/known data
    A small loop of wire of radius 1.5 cm is placed at the center of a wire loop with radius 20 cm. The planes of the loops are perpendicular to each other, and a 5.0 -A current flows in each. Estimate the magnitude of the torque the large loop exerts on the smaller one.


    3. The attempt at a solution
    I've pretty much started by finding the magnetic field at the center of the big loop. I'm not sure how to proceed.
     
  2. jcsd
  3. Aug 9, 2011 #2

    Redbelly98

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    That's the right way to start.

    There should be a discussion of torque on a current loop in your physics textbook. It would be related to the magnetic moment and/or area of the smaller loop.
     
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