Obtain an expression for the current through an inductor when an AC emf is applied.

Explain the term 'drift velocity' of electrons in a conductor. Hence obtain the expression for the current through a conductor in terms of 'drift velocity'.

A: At any instant, if the current through an inductor is zero, then the induced emf will also be zero. R: In one time constant, the current flows to 37 percent of its maximum value in a series LR circuit.

A student connects a cell of emf epsilon_(2) and internal resistance r_(2) , with a cell of emf epsilon_(1) such that their combinationhas a net internal resistance less then r_(1) . This combination in the connected across a resistance R . Draw a circuit of the 'set up' and obtain an expression for the current flowing through the resistance R

Define self-inductance of a coil. Obtain the expression for the energy stored in an inductor L connected across a source of emf.

Obtain an expression for the instantaneous value of the induced emf in an ac generator.

Obtain the expression for the magnetic energy stored in an ideal inductor of self inductance L when a current I passes through it. Hence obtain the expression for the energy density of magentic field produced in the inductor.

A capacitor of capacitance Chas initial charge Q_0 and connected to an inductor L as shown. At t=0 switch S is closed. The current through the inductor when energy in the capacitor is three times the energy of inductor is

In the given circuit, find the current through the 5 mH inductor in steady state.

For the circuit as shown in the figure the current through the inductor is 1.6 A, while the current through the condenser is 0.4 A . Then, the current drawn from the source is

A condenser of capacity C is charged to a potential difference of V_(1) . The plates of the condenser are then connected to an ideal inductor of inductance L . The current through the inductor when the potential difference across the condenser reduces to V_(2) is