Q. A voltmeter of resistance $1000\ \Omega$ is connected across a resistance of $500\ \Omega$ in the given circuit. What will be the reading of voltmeter
A) $1\ V$
B) $2\ V$
C) $6\ V$
D) $4\ V$
Explanation
(d) Total current through the circuit
$i = \frac{10}{\frac{1000}{3} + 500} = \frac{3}{250}A$
Now voltmeter reading $= i_{v} \times R_{V} = \frac{2}{3} \times \frac{3}{250} \times 500 = 4V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.