An ac generator produced an output voltage \[E=170\sin 377\,t\,volts\] – McqOptions

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1.	An ac generator produced an output voltage \[E=170\sin 377\,t\,volts\], where t is in seconds. The frequency of ac voltage is [MP PET 1994]
A.	50 Hz
B.	110 Hz
C.	60 Hz
D.	230 Hz
Answer» D. 230 Hz

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