Show that in an inductane, the voltage leads the current by `pi//2`.

When a series combination of inductance and resistance are conneted with a 10 V, 50 Hz a.c. source, a current of 1 A flows in the circuit. The voltage leads the current by a phase angle of pi//3 radian. Calculate the values of resistance and inductance.

An inductance coil has a impedance of 100 ohm. When a.c. signal of frequency 1,000 hz is applied to the coil, the applied voltage leads the current by 45^@ . Calculate the self inductance of the coil.

How does the sign of the phase angle phi , by which the supply voltage leads the current in an LCR series circuit, change as the supply frequency is gradually increased from very low to very high values?

In a circuit, the current lags behind the voltage by a phse difference of pi//2 . The circuit contains which of the following?

Show mathematically that in an a.c. circuit containing only inductance, the current lags behind the e.m.f. by a phase of pi/2 . An a.c. voltage E=E_0 sin omegat is applied across an inductor L. Obtain an expression for current I.

What is the power dissipated in an a.c. circuit in which voltage and current are given by V=3000 sin(omegat-pi/2) and I= 10 sin omegat

A bulb of resistance of 10 ohm, connected to an inductor of inductance L, is in series with an a.c. source marked 100 V-50 Hz. If the phase angle between the voltage and current is pi//4 radian, calculate the value of L.