In the given RC circuit, the current is i(t) = 2cos5000t Amp. The applied voltage in volts is :
(a) 28.28 cos (50001-45�)
(b) 28.28 cos (5000/+ 45�)
(c) 28.28 sin (5000/-45�)
(d) 28.28 sin (5000/+ 45�)
In the circuit shown, the ammeter reads 1 ampere and voltmeter 10 volts. The internal resistance of the ammeter is 1 ohm and that of voltmeter is 50 ohms. The value of R is _______.
(a) 111 .2 ohms (b) 120 ohms (c) 100 ohms (d) 112 ohms Ans: D
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