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A coil of effective area 2 m^(2) is rota...

A coil of effective area `2 m^(2)` is rotated so as to cut a magnatic field of induction `7 x 10^(-5)` wb/m^2makes 100 revolution`//`sec, then the maximum e.m.f. Induced in the coil is

A

44 mV

B

88 mV

C

22 mV

D

200 mV

Text Solution

Verified by Experts

The correct Answer is:
B
`e_(0)=nABomega = nAB cdot 2 pi n`
`=2 xx 7 xx 10^(-5) xx 2 xx 22/7 xx 100 = 88 mV`.
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MARVEL PUBLICATION-ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS -TEST YOUR GRASP - 16
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