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A 200-turn coil of area 0.02 square metre spins at 100 rad/s in a 0.5 T field. What is its peak emf?
A100 V
B400 V
C20 V
D200 V
Answer & Solution
Correct answer: D. 200 V
Peak emf is N B A w = 200 x 0.5 x 0.02 x 100 = 200 V.
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