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Homework Help: Need help with torque on a rectangular coil

  1. Dec 19, 2004 #1
    This is another question that I have think for very long hours but still find the solution to this question.I have my question in the attachment that followed.
     

    Attached Files:

  2. jcsd
  3. Dec 19, 2004 #2

    learningphysics

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    Homework Helper

    No. Not that way. You can calculate r using purely geometry.
     
  4. Dec 19, 2004 #3
    Thanks for your help and I finally get the answer to my question.
     
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