A square coil of side 10 cm has 10 turns. It rotates in a magnetic field of induction 0.02 T and produces a maximum induced emf of 10 mV. Then the angular velocity of the coil is
A
0.5rads−1
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B
5rads−1
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C
5πrads−1
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D
0.2πrads−1
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Solution
The correct option is B5rads−1 emax=BANω 10×10−3=0.02×100×10−4×10×ω ω=10.2=102=5rads−1