- A series magnetic circuit shown in fig. is made up of two different materials cast steel and cast iron. cross-sectional area is 10 cm². Each joint reluctance is equal to an air gap of 0.2 MM. Mean length of each material is 0.33 m find the total current required to produce flux of 8×10-4 wb in the circuit. The relative permeability of the cast iron and cost steel are 166 and 800 respectively. (click for solution)
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