Question

shows a 100-turn coil of wire of radius 15 cm in a 0.25 T magnetic field....

shows a 100-turn coil of wire of radius 15 cm in a 0.25 T magnetic field. The coil is rotated 90? in 0.30 s, ending up parallel to the field. What is the average emf induced in the coil as it rotates?

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