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Question

A coil of wire rotates about a horizontal north-south axis with its plane kept along axis. Assume that at that point , the horizontal component of earth's magnetic field is along north direction. How does the magnetic field contribute to the emf induced in this coil?

A
Both the vertical and horizontal components contribute to the induced emf
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B
Only the horizontal component induces an emf
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C
Only vertical component induces an emf
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D
There is no emf induced in the coil
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Solution

The correct option is B Only the horizontal component induces an emf
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