Question: As shown, a core with a square cross-section is made of two ferromagnetic materials, A and B, with a relative permeability of 600 and

As shown, a core with a square cross-section is made of two ferromagnetic materials, A and B, with a relative

As shown, a core with a square cross-section is made of two ferromagnetic materials, A and B, with a relative permeability of 600 and 1200, respectively. A coil of 1,190 turns is wound on the core. The current required in the coil to produce a flux of 0.65 mWb is___A 3 cm 5 cm 30 cm 5 cm 5 cm B 30 cm

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