An alternating e.m.f. 100 cos 100 t volt is connected in series to a resistance of 10 ohm and inductance 100mH. The phase difference between the current in the circuit and the e.m.f. is

An alternating emf 200 virtual volts at 50 Hz is connected to a circuit resistance 1omega and inductance 0.01 H . What is the phase difference between the current and the emf in the circuit? Also, find the virtual current in the circuit.

A source of alternating emf of 220 V - 50 Hz is connected in series with a resistance of 200 Omega an inductance of 100 mH and a capacitance of 30 mu F . Does the current lead or lag the voltage and by what angle ?

What will be the self-inductance of a coil, to be connected in a series with a resistance of pi sqrt (3) Omega such that the phase difference between the e.m.f. and the current at 50 Hz frequency is 30^@ ?

In an ac circuit , an alternating voltage e = 200 sqrt2 sin 100 t volts is connected to a capacitor of capacitance 1 mu F . The rms value of the current in the circuit is :

An alternating e.m.f. given by e=200 sin 50 t is applied to a circuit containing only a resistance of 50 Omega . What is the value of r.m.s. current in the circuit?

There is a 5 Omega resistance in an AC , circuit. Impedence of 0.1 H is connected with it in series. If equation of AC emf is 5 sin 50 t then the phase difference between current and e.m.f. is

An alternating emf, e=300 sin100 pit volt, is applied to a pure resistance of 100 Omega . The rms current through the circuit is