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 adjoining diagram.When the frequency of the oscillator is increased, upto resonance frequency, the voltmeter reading (at resonance frequency) is zero in the case of:

Options

A. voltmeter `V_(1)` only
B. voltmeter `V_(2)` only
C. voltmeter `V_(3)` only
D. All the three voltmeters

Answer

B

Explanation

At resonance, `X_(L)= X_(C )` or omega L= (1)/(omega C)`
Voltage across the series L-C combination, `V_(2)= i(X_(L) -X_( C))=0`