When an AC source is connected to an ideal inductor show that the average power supplied by the source over a complete cycle is zero.

Show that the average power supplied to an ideal capacitor by the source over a complete cycle is zero.

Show that average power over a complete cycle of AC through an ideal inductor is zero.

Power delivered by the source of the circuit becomes maximum, when

A 100 Omega resistor is connected to a 220 V, 50 Hz supply:- What is the net power consumed over a full cycle?

A series LCR circuit with R=20 Omega ,L=1.5 H and C = 35 mu F is connected to a variable frequency 200 V ac supply. When the frequency of the supply equals the natural frequency of the circuit , what is the average pourer transferred to the circuit in one complete cycle?

When a voltage measuring device is connected to ac mains, the meter shows the steady input voltage of 220 V.This means

Solve the following example: A source of sound has frequency 1000Hz. If the speed of sound in air under certain conditions is 340 m/s, find the distance covered by sound when the source completes 100 vibrations.

Can the instantaneous power output of an ac source ever be negative? Can the average power output be negative?

A refrigerator has to transfer an average of 263 J of heat per second from temperature (-10)^@C to 25^@C . Calculate the average power consumed assuming ideal reversible cycle and no other losses.