The time constant of an inductor is `tau_(1)`. When a pure resistor of `R Omega` is connected in series with it, the time constant is found to decrease to `tau_(2)`. The internal resistance of the inductor is

A coil of some internal resistance 'r' behaves line an inductance. When it is connected in series with a resistance R_(1) , the time constant is found to be tau_(1) . When it is connected in series with a resistance R_(2) , the time constant is found to be tau_(2) . The inductance of the coil is

The time constant of a circuit is 10 sec , when a resistance of 10 Omega is connected in series in a prevouse circuit then time constant becomes 2 second, then the self inductance of the circuit is :-

A 100 Omega resistance is connected in series with a 4 H inductor. The voltage across the resistor is V_(R) = 2 sin (1000 t) V . The voltage across the inductors is

An inductor of reactance 1 Omega and a resistor of 2 Omega are connected in series to the terminals of a 6 V (rms) ac source. The power dissipated in the circuit is

A inductor of reactance 1 Omega and a resistor of 2 Omega are connected in series to the terminals of a 6 V (rms) a.c. source. The power dissipated in the circuit is

A inductor of reactance 1 Omega and a resistor of 2 Omega are connected in series to the terminals of a 6 V (rms) a.c. source. The power dissipated in the circuit is

A inductor of reactance 1 Omega and a resistor of 2 Omega are connected in series to the terminals of a 6 V (rms) a.c. source. The power dissipated in the circuit is