An inductor coil stores U energy when i` current is passed through it and dissipates energy at the rate of P. The time constant of the circuit, when this coil is connected across a battery of zero internal resistance is

An inductor coil stores 16 joules of energy and dissipates energy as heat at the rate of 320 W when a current of 2 Amp is passed through it. When the coil is joined across a battery of emf 20V and internal resistance 20Omega the time constant for the circuit is tau . Find 100tau ( in seconds).

An inductor coil stores 32 J of magnetic field energy and dissiopates energy as heat at the rate of 320 W when a current of 4 A is passed through it. Find the time constant of the circuit when this coil is joined across on ideal battery.

A current of 2A flows through a 2 Omega resistor when connected across a battery. The same battery supplies a current of 0.5A when connected across a 9Omega resistor The internal resistance of the battery is

When current i passes through an inductor of self inductance L, energy stored in it is 1//2. Li^(2) . This is stored in the

A current of 2 A flows through a 2 Omega resistor when connected across a battery. The same battery supplies a current of 0.5 A when connected across a 9 Omega resistor. The internal resistance of the battery is

An inductor coil, a capacitor and an a.c. source of rms voltage 24 V are connected in series. When the frequency of the source is varied, a maximum rms current of 6A is obtained. The inductor coil is then connected to a battery of emf 12 V and internal resistance of 2 Omega . what will be the circuit?

A coil of induction 50 H is connected to a battery of emf 2 V through a resistance of 10 ohm. What is the time constant of the circuit and maximum value of current in the circuit ?