Question

In the circuit shown in figure, what will be the reading of the voltmeter?

• A. 300 V
• B. 900 V
• C. 200 V
• D. 400 V

Answer 1

Answer: (C)

200 V

Here, $V_L=V_C=100V,V=200V$

In an LCR circuit, the total volatge is given by:

$V=\sqrt{V_R^2+(V_L-V_C{)}^2}$

$\Rightarrow 200=\sqrt{V_R^2+(100-100{)}^2}=V_R$

$or{V}_R=200V$