Question

In the given series LCR circuit, the hot wire voltmeter whose reading will be zero at resonance, is -

• A. $V_1$
• B. $V_2$
• C. $V_3$
• D. $V_4$

Answer 1

The correct option is D $V_4$


At resonance, $V_L=V_C$ and the phase difference between them is $\pi$.

So, the net potential difference across the combination of inductor and capacitor will be zero.

Therefore, the reading of the voltmeter $V_4$ will be zero.

Hence, option $\left(D\right)$ is the correct answer.