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Vector potential square loop

  1. Nov 17, 2007 #1
    1. The problem statement, all variables and given/known data

    A current I flows counter-clockwise in a thin wire bent around a square form of side 2a. Calculate the vector potential A and the magnetic induction B along an axis passing through the center of the square parallel to one of the sides. for definiteness, assume the loop lies in the x-y plane and choose the axis parallel to the x-side, so make your calculation for the point (x,a,0).

    2. Relevant equations

    A = (u0 I/4pi) x integral(dl/r)

    3. The attempt at a solution
     
  2. jcsd
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