.A resistance R draws power 'P' when connected to an AC source.If an inductance is now placed in series with the resistance,such that the impedance of the circuit becomes 'Z' the power drawn will be

A resistance R draws power P when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedence of the circuit becomes Z , the power drawn will be

When a capacitance is connected in series with a series L-R, a.c. circuit, the total impedance of the circuit

A resistance is connected to a n AC source. If a capacitor is induced in the series cirucit, the average power absorbed by the resistance

If both the resistance and the inductance in an LR AC series circuit are doubled the new impedance will be

In an AC circuit, the reactannce is equal to the resistance. The power factor of the circuit will be

An inductance and a resistance are connected in series with an AC potential . In this circuit

A series combination of R,LC is connected to an a.c source. If the resistance is 3 Omega and the reactance is 4 Omega , the power factor of the circuit is

An inductor of resistance 80 Omega is connected to an AC source of frequency 50 Hz . Calculate the inductance if the impedance of circuit is 150 Omega .

The series combination of resistance R and inductance L is connected to an alternating source of e.m.f. e = 311 sin (100 pit) . If the value of wattless current is 0.5A and the impedance of the circuit is 311Omega , the power factor will be –