Q.
The number of turns in the coil of an ac¬ generator is 5000 and the area of the coil is 0.25 m2. The coil is rotated at the rate of 100 cycles/sec in a magnetic field of 0.2 W/m2. The peak value of the emf generated is nearly
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a
786 kV
b
440 kV
c
220 kV
d
1570 kV
answer is D.
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Detailed Solution
e0=ωNBA=(2πv)NBA=2×3.14×1000×5000×0.2×0.25=1570kV
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