A wheel with 20 metallic spokes each 1 m long is rotated with a speed of 120 rpm in a plane perpendicular to a magnetic field of 0.4 G. The induced emf between the axle and rim of the wheel will be (1 
) [NEET 2020]
A
B
C
D
2.51 V
Text Solution
Verified by ExpertsThe correct answer is:
A
Given, magnetic field, 
Frequency, 
Induced emf between the axle and rim of the wheel is given as
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