Question

$10^{- 3}amp$ is flowing through a resistance of $1000\Omega$. To measure the correct potential difference, the voltmeter is to be used of which the resistance should be

• A. $0\Omega$
• B. $500\Omega$
• C. $1000\Omega$
• D. $> > 1000\Omega$

Answer 1

Answer: (D)

$> > 1000\Omega$

Answer 2

Resistance of voltmeter should be greater than the external circuit resistance. An ideal voltmeter has infinite resistance.