The virtual current in the a.c. circuit shown in fig, 14.15 is 1.0 A. Find (i) virtual coltage across the coil L (ii) impendance of the circuit and (ii) reactance of the coil.

A lamp with a resistance of 8 Omega is connected to a choke coil as shown in fig. this arrangement is connected to an alternating source of 110V. The current in the circuit is 11A. The frequency of the ac is 60 Hz. Find (a) the impedence of the circuit and (b) the value of inductive of the choke coil.

R-L-C series AC circuit shown in fig. Find i_(max)

The series L–C–R circuit shown in fig. is in resonance state. What is the voltage across the inductor?

In the circuit shown in the figure, find: (a) the reactance of the circuit (b) impedance of the circuit (c )the current (d) readings of the ideal AC voltmeters(these are hot wire instruments and read rms values)

The virtual current of 4 A and 50 Hz flows in an AC circuit contaning a coil. The power consumed in the coil is 240 W. If the virtual voltage across the coil is 100 V, then its resistance will be

An a.c. source is connected to two circuit as shown in fig. 14.10. Obtain the current through the resistance R at resonance in both the circuits.

A 1000 hertz a.c. is flowing in a 14 mH coil. Find its reactance.

There are two circuits shown in figure . Find the ratio of power factor of circuit -I to that with power factor of circuit -II .