Question

If a voltmeter of resistance $1000\, \Omega$ is connected across a resistance of $500\, \Omega$ in the given circuit, then the reading of voltmeter will be

• A. 1 V
• B. 2 V
• C. 6 V
• D. 4 V

Answer 1

Answer: (D)

Total current through the circuit
$i=\frac{10}{\frac{1000}{3}+500}$
$=\frac{3}{250} A$
$\therefore $ Voltmeter reading
$=i_{V} \times R_{V}=\frac{2}{3} \times \frac{3}{250} \times 500=4\, V$