Determine the current, i(t), in the circuit given below, (Fig.), using the Thevenin's theorem.

The value of the resistance, R, connected across the terminals, A and B, (ref. Fig.), which will absorb the maximum power, is

Two 2H inductance coils are connected in series and are also magnetically coupled to each other the coefficient of coupling being 0.1.The total inductance of the combination can be