a. Find the current I required to establish a flux ? = 2.4 × 10-4 Wb in the magnetic circuit of Figure P18.14. Here area(throughout) = 2 × 10-4 m2, lab = lef = 0.05 m, la f = lbe = 0.02 m, lbc = ldc, and the material is sheet steel. b. Compare the mmf drop across the air gap to that across the rest of the magnetic circuit. Discuss your results, using the value of ? for each material.
Analysis:
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