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An A.C. source of voltage V=200 "sin" (1...

An A.C. source of voltage V=200 "sin" `(100 pit)" volts is connected with `R=50Omega`.The time interval in which of the current goes from its peak value of half of the peak value is: (A) 1/400 sec (B) 1/50 sec (C) 1/300 sec (D) 1/200 sec

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