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Question about computing torque?

  1. Jul 24, 2005 #1
    Question about computing torque??

    When computing torque of a electic motor I use the formula T=IAB, where as I represents the current, A represents the area, and B represents the magnetic field. My question is, what is the meaning of the product of IA???
  2. jcsd
  3. Jul 24, 2005 #2


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    Homework Helper

    IA is the magnetic diapole moment of a current carring loop where I is the current and A is the area of the loop.
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