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Finding required coil current (magnetic circuit)

  1. Sep 7, 2016 #1
    1. The problem statement, all variables and given/known data
    Toroidal core
    N = 1000 turns
    R = 6cm
    r = 1cm
    established a total flux of 0.0002 Wb in a non-magnetic core.

    Find the required coil current
     
  2. jcsd
  3. Sep 8, 2016 #2
    From Flux and area you can find B as B = Flux / area.
    From B you can refer to B-H curve and find H. The B-H curve would be of the non magnetic core material.
    Your H = NI. You have your N. So the current can be found out.
     
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