(chatquestion)...The voltage of an ac supply varies with time (f) as V= 120 sin 100 Rt cos 100 rư. The maximum voltage and frequency respectively are 120 (b) 2 volts, 100 Hz 120 volts, 100 Hz (a) (d) 60 volts, 100 Hz (c) 60 volts, 200 Hz

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