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  • An inductance L, a capacitance C and a resistance R may be connected to an AC source of angular frequency , in thr

An inductance L, a capacitance C and a resistance R may be connected to an AC source of angular frequency \omega, in three different combinations of RC, RL and LC in series. Assume that \omega \mathrm{L}=\frac{1}{\omega \mathrm{C}} The power drawn by the three combinations are P_{1},P_{2},P_{3}

respectively. then, 

Option: 1

P_1>P_2>P_3


Option: 2

\mathrm{P}_1=\mathrm{P}_2<\mathrm{P}_3


Option: 3

P_1=P_2>P_3


Option: 4

\mathrm{P}_1=\mathrm{P}_2=\mathrm{P}_3


Answers (1)

best_answer

The LC circuit draws no power. When \omega \mathrm{L}=\frac{1}{\omega \mathrm{C}},he impedances of

the RC and LR circuits are equal, and they draw the same power.

Posted by

Sayak

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