Determine the current which will produce a flux of 0.4 m wb in the air gap ?

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Determine the current which will produce a flux of 0.4 m wb in the air gap ?




An electro magnet has an air gap of 4 mm and the flux density in the air gap is 1.3 Wb/m2. Determine the ampere-turns for the gap. A radial saw cut of 1 mm is made in the ring. Determine the current which will produce a flux of 0.4 m wb in the air gap. Assume the relative permeability under these conditions to be 941 and neglect leakage ?



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