The frequency of ac mains in India is [NCERT 1974; MP PMT/PET 1988; RP – McqOptions

MCQOPTIONS

1.	The frequency of ac mains in India is [NCERT 1974; MP PMT/PET 1988; RPMT 1997; RPET 2000]
A.	30 c/s or Hz
B.	50 c/s or Hz
C.	60 c/s or Hz
D.	120 c/s or Hz
Answer» C. 60 c/s or Hz

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