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Magnetic field inside and outside the rectangular conductor

  1. Jul 1, 2011 #1
    I want to find the magnetic field result from DC current flow through the rectangular transmission line numerically by using the finite difference.
    the solved equation is curl curl A =µ J , with div A=0, and J is a uniform current on the crosssection.
    I implement the matlab code , but the result is not logical, so i think the boundary condition is the problem
    I take the symmetry plans , one vertical and other Horzi. and solve the problem for quarter conductor.
    my question the boundary conditions for that problem

    thank you in advance
  2. jcsd
  3. Aug 4, 2011 #2
    Couldn't you just use amperes law and model it as a sheet current, at least that would give you an approximation.
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