A circular coil of mean radius of 7 cm and having 4000 turns is rotated at the rate of 1800 revolutions per minute in the earth's magnetic field (B = 0.5 gauss), the maximum e.m.f. induced in coil will be
Text Solution
Verified by ExpertsThe correct answer is:
B
Here: 
Rate of rotation of coil 
Now area of coil
Now the maximum energy induced is
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