Question

In a circuit shown in the figure, what will be the reading of voltmeter $V_3$ and ammeter it a.c. source of $300V$ and $50Hz$ is connected.

• A. $800V,3A$
• B. $300V,3A$
• C. $200V,2A$
• D. $100V,2A$

Answer 1

The correct option is B $300V,3A$

Given,

Voltage across inductance and capacitance are same as source voltage

when Source voltage will be connected to $200V$ then

$V_3=\sqrt{V^2-{(V_1-V_2)}^2}=\sqrt{{300}^2-{(300-300)}^2}=300V$

$I=\frac{V}{R}=\frac{300}{100}=3A$

Correct option is B