(a) Prove that an ideal capacitor in ac circuit does not dissipate power. (b) An inductor of 200m H
Channel: Doubtnut
Date: 2020-01-03

(a) Prove that an ideal capacitor in ac circuit does not dissipate power. (b) An inductor of 200m H, capacitor of `400 mu f` and a resistaor of `10 Omega` are connected in series to ac source of 50 V of variable frequency. Calculate the (i) angular frquency at which maximum power dissiplation occurs in the circuit and the corresponding value of the effective current, and (iii) value of Q-factor in the circuit.