Question

In the series LCR circuit, the power dissipation is through

• A. R
• B. L
• C. C
• D. Both L and C

Answer 1

Answer: (A)

R

Answer 2

The question should be in a resonate LCR circuits '$L$' $\alpha$ 'C' do not dissipate power.
The impedance of a series LCR circuit is given by will be minimum when $\omega L =1 / \omega C$,
i.e., when the circuit is under resonance.
Hence, for this condition, $Z$ will be minimum and will be equal to $R$