a. Find the current I required to establish a flux Φ = 2.4 × 10−4 Wb in the magnetic circu...

a. Find the current I required to establish a flux Φ = 2.4 × 10−4 Wb in the magnetic circuit in Fig. 1.

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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 μ for each material.

FIG. 1