A `5H` inductor is placed in series with a `10Omega` resistor. An emf of `5V` being suddenly applied to the combination. Using these values prove the principle of conservation of energy, for time equal to the time constant.

A 3.56 H inductor is placed in series with a 12.8Omega resistor. An emf of 3.24 V is then suddenly applied across the RL combination. (a) At 0.278 s after the emf is applied what is the rate at which energy is being delivered by the battery? (b) At 0.278 s , at what rate is energy appearing as thermal energy in the resistor? (c) At 0.278 s , at what rate is energy being stored in the magnetic field?

A 20 H inductor is placed in series with 10 W resistor and an emf of 100 V is suddenly applied to the combination. At t = 1 s from t = 1 s from the start, find the rate at which energy is being stored in the magnetic field around the inductor (givne e^(-0.5)=0.61 ).

A3 H inductor is placed in series with 10 Omega resistor and an emf of 10V is applied to the combination. Find (i) the current at 0.3s, (ii) the rate of increase of current at 0.3s, (iii) the rate at which energy is dissipated as heat at t = 0.3s . (iv) the rate at which energy is stored in the magnetic field at 0.3s. (v) the rate at which energy is delivered by the battery, and (vi) the energy stored when the current has attained steady value.

In series with 20 ohm resitor a 5 henry inductor is placed. To the combination an e.m.f. of 5 volt is applied. What will be the rate of increase of current at t=0.25 sec ?

An inductor of 5 m H is connected in series with a resistor of resistance 4 Omega . A battery of 2 V is connected across the circuit through a switch . Calculate the rate of growth of current just after the switch is on .