Questions in Alternating Current

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	An ac generator produced an output voltage $E = 170\sin 377\,t\,volts$, where t is in seconds. The frequency of ac voltage is
	In general in an alternating current circuit
	An alternating current is given by the equation $i = {i_1}\cos \omega \,t + {i_2}\sin \omega \,t$. The r.m.s. current is given by
	In an ac circuit, the current is given by $i = 5\sin \,\left( {100\,t - \frac{\pi }{2}} \right)$ and the ac potential is$V = 200\sin \,(100)\,volt.$ Then the power consumption is
	An electric lamp is connected to 220 V, 50 Hz supply. Then the peak value of voltage is
	In a circuit, the value of the alternating current is measured by hot wire ammeter as 10 ampere. Its peak value will be
	The voltage of domestic ac is 220 volt. What does this represent
	The r.m.s. voltage of domestic electricity supply is 220 volt . Electrical appliances should be designed to withstand an instantaneous voltage of
	The process by which ac is converted into dc is known as
	In an ac circuit with voltage $V$ and current $I$, the power dissipated is