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A magnetic field in a certain region is ...

A magnetic field in a certain region is given by `B = B_(0) cos (omega t) hat k` and a coil of radius a with resistance R is placed in the x-y plane with its centre at the origin in the magnetic field, Fig. Find the magnitude and the direction of the current at (a,0,0) `at t = pi//2 omega, t = pi//omega` and `t = 3 pi//2 omega`.

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