Q 12-07-021NEETJEE MainMedium
A series LCR circuit with $R = 30\ \Omega$, $X_L = 60\ \Omega$ and $X_C = 20\ \Omega$ is connected to a $100$ V (rms) ac supply. The average power consumed in the circuit is
Answer: (D) $120$ W
$Z = 50\ \Omega$, $I = 2$ A. Only the resistor consumes power: $P = I^2R = 4 \times 30 = 120$ W.
Solution by Sreeraj P, M.Sc Physics