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2. The B-H curve of a certain ferrous material is described by the following equation: B...

2. The B-H curve of a certain ferrous material is described by the following equation: B = (H/200)(0.2 + e-H/400) where H is in A/m and B is in T. If a magnetic circuit contains a 10-cm length of this material, as well as a 0.2-mm air gap, assume a uniform cross section of 3 cm2 and find: (a) the total mmf required to produce a flux of 360 µWb; (b) the flux if the applied mmf is 500 A.t.

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