An inductor coil carries a steady state current of 2.0 A when connected across an ideal battery of emf 4.0 V. if its inductance is 1.0 H, find the time constant of the circuit.

A 10 H inductor carries a steady current of 2 A. how can a self - induced emf of 100 V be made to appear in the inductor ?

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 of 5 H inductance carries a steady current of 2 A. How can a 50 V self induced e.m.f. be made to appear in the inductor ?

A 12 H inductor carries a current of 2.0 A. At what rate must the current be changed to produce a 60 V emf in the inductor?

A capacitor of capacity 2 muF is charged to a potential difference of 12 V . It is then connected across an inductor of inductance 6 mu H . What is the current (in A ) in the circuit at a time when the potential difference across the capacitor is 6.0 V ?

A capacitor of capacity 2muF is changed to a potential different of 12V . It is then connected across an inductor of inductance 0.6mH What is the current in the circuit at a time when the potential difference across the capacitor is 6.0V ?

Two coil A and B have inductances 1.0 H and 2.0 H respectively. The resistance of each coil is 10 Omega . Each coil is connected to an ideal battery of emf 2.0 V at t = 0 Let i_A and i_B be the current in the two circuit at time t. Find the raito i_A/ I_B at (a) t=100ms, (b) t= 200 ms and (c ) t = 1 s.

An inductance of 2 H and resistance of 10 Omega are connected to a battery of 5 V. the time constant of the circuits is:

When a choke coil carrying a steady current is short circuited, the current in it decreases to beta(lt1) times its initial value in a time T . The time constant of the choke coil is

A coil having inductance 2.0 H and resistance 20 Omega is connected to a battery of emf 4.0 V. Find (a) the current a the instant 0.20 s after the connection Is made and (b) the magnetic energy at this instant.