# 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 eac

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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. one revolution
B. (1)/(2) revolution
C. (1)/(4) revolution
D. 2 revolution

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The direction of induced emf is reversed after every half revolution of the loop.