question_answer

\[{{10}^{-3}}amp\] 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    [MP PMT 1985]

A)                    \[0\,\Omega \]

B)                                      \[500\,\Omega \]

C)                    \[1000\,\Omega \]     

D)            \[>>1000\,\Omega \]