Question

A resistor R, an inductor L, a capacitor C and voltmeters $V_1,V_{2}and{V}_3$ are connected to an oscillator in the circuit as shown in the diagram. When the frequency of the oscillator is increased, upto resonance frequency, the voltmeter reading is zero in the case of :

• A. Voltmeter $V_1$
• B. Voltmeter $V_2$
• C. Voltmeter $V_3$
• D. all the three voltmeters

Answer 1

The correct option is B Voltmeter $V_2$

Since resonance condition is there

$\therefore$ net voltage across $L$ and $C$ is zero

$\therefore$ $V_2$ reading is zero.

Hence,

option $B$ is correct answer.