Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, give an estimate of the self-inductance of the circuit.

When the current in a coil changes from 2 A to 4 A in 0.05 s, an e.m.f. of 8 V is induced in the coil. The coefficient of self-induction of the coil is

When the current changes fro +2A to -2A in 0.05 s, an e.m.f. of 8 V is induced in the coil. The coefficient of self-indution of the coil is

If a rate of change of current of 4 A s^-1 induces an e.m.f. of 20 mV in a solenoid, what is the self-inductance of the solenoid?

A circuit consists of a resistance 10 ohm and a capacitance 0.1muF . If an alternating e.m.f. of 100V, 50Hz is applied, calculate the current in the circuit.

An e.m.f. of 250 muV is induced in a coil, when current in it changes from 10 A to 6 A in 0.4 s. What is the self inductance of the coil?

An e.m.f 0.5 V is developed in the secondary coil, when current in the primary coil changes from 5.0 A to 2.0 A in 300 millisecond. Calculate the mutual inductance of the two coils.

Current changes from 10A to 0A in 2 seconds in a coil of self inductance 2H. Find the induced emf in the coil.