A circuit containing a 80 mH inductor and a `60 mu F` capacitor in series is connected to a 230 V 50 Hz supply. The resistance of the circuit is negligible.
What is the total average power absorbed by the circuit ? ['Average' implies 'averaged over one cycle']

Explanation

Given Inductance
`L = 80 mH = 80xx10^(-3)H`
Capacitance of capacitor
`C = 60 mu F = 60xx10^(-6)F`
The rms value of voltage
`V_("rms")=230 V`
Frequency f = 50 Hz , Resistance R = 0
As there is no resistance in the circuit, so average power is equal to sum of average power due to inductor and capacitor. That means the average power consumed is zero.