Choose the correct option. A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each (A) two revolutions (B) One revolution (C) half revolution (D) one-fourth revolution

Answer: (C) half revolution

The direction of the induced current varies once every half revolution when a rectangular coil is rotated in a magnetic field. As a consequence, the current in the coil continues to flow in the same direction.

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