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Magnetic image of a coil over a conducting surface

  1. Jul 18, 2012 #1
    1. The problem statement, all variables and given/known data

    If the coil in the figure is touching to an ideally conducting (σ=∞) non-magnetic steel from the A4-A5 side, what would be the magnetic field in the gap. Assume A1=A2=A3=A4=A5.

    2. Relevant equations

    220px-Magnetischer_Kreis.svg.png


    3. The attempt at a solution

    I have calculated that when the coil is alone, the magnetic field in the gap is

    B=μ0NI/g
    where g is the gap at A5

    So how the results modifies when there is an image coil induced by the conducting metal.
    Thanks
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
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