Question

The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of $$400 rps$$. The frequency of the induced output voltage is

A
40Hz
B
100Hz
C
400Hz
D
indeterminable

Solution

The correct option is C $$400 Hz$$Frequency of a rotating body is defined as the number of rotations done in one second.Frequency of induced output voltage is same as the frequency of rotating loop.Thus frequency of induced output voltage is $$400 Hz$$.PhysicsNCERTStandard XII

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