Electrical Engineering: Circuit theory MCQ

For the network shown, the equivalent Thevenin voltage and Thevenin impedance as seen across terminals ` ab `is

The initial charge in the 1 F capacitor present in the circuit shown is zero. The energy in joules transferred from the DC source until steady state condition is reached equals _______ . (Give the answer up to one decimal place.)

A load is supplied by a 230 V, 50 Hz source. The active power P and the reactive power Q consumed by the load are such that 1 kW ≤ P ≤ 2 kW and 1 kVAR ≤ 2 kVAR. A capacitor connected across the load for power factor correction generates 1 kVAR reactive power. The worst case power factor after power factor correction is

In the circuit shown below, the maximum power transferred to the resistor R is ______ W.

In the circuit, switch S is in the closed position for a very long time. If the switch is opened at time  t = 0  then i_L(t)  in amperes, for t ≥ 0 is