`AC` source of voltage of `V=V_(0)sin (100t)` is connected with box which contain ether `RL` of `RC` circuit. If voltage leads the current by phase `pi//4` then :

A voltage source V=V_(0) sin (100 t) is connected to a black box in which there can be either one element out of L,C,R or any two of them connected in series. At steady state, the variation of current in the circuit and the source voltage are plotted together with time.using an oscilloscope, as shown If AC source is removed, the circuit is shorted for some time so that capacitor is fully discharge and then a battery of constant EMF is connected across the black box, at t=0 .The current in the circuit will-

A voltage source V=V_(0) sin (100 t) is connected to a black box in which there can be either one element out of L,C,R or any two of them connected in series. At steady state, the variation of current in the circuit and the source voltage are plotted together with time.using an oscilloscope, as shown If AC source is removed, the circuit is shorted for some time so that capacitor is fully discharge and then a battery of constant EMF is connected across the black box, at t=0 .The current in the circuit will-

An ac source of voltage V=V_(m)sin omega t is connected across the resistance R as shown in figure. The phase relation between current and voltage for this circuit is

An ac source of voltage V=V_(m)sin omega t is connected across the resistance R as shown in figure. The phase relation between current and voltage for this circuit is

(a) Prove that the current flowing through an ideal inductor connected across a.c. source, lags the voltage in phase by pi/2 . (b) An inductor of self inductance 100 mH, and a bulb are connected in series with a.c. sources of rms voltage 10 V, 50 z. It is found that effective voltage of the circuit leads the current in phase by pi/4 . Calculate the inductance of the inductor used and average power dissipated in the circuit, if a current of 1 A flows in the circuit.

In an AC circuit , an alternating voltage e = 200 sin 100t V is connected to a capacitor of capacity 1mu F . The rms value of the current in the circuit is