In an AC generator, the brushes in conta...

In an AC generator, the brushes in contact with the step rings alternatively become positive and negative in the time interval of 5 ms. What is the frequency of the voltage generated ?

200 Hz

100 Hz

50 Hz

10 Hz

Text Solution

Verified by Experts

The correct Answer is:

The periodic time of coil
T=5 ms + 5 ms = 10 ms = 0.01 s
`therefore` Frequency `f=1/T=1/0.01`=100 Hz

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