Question

To convert a galvanometer into a voltmeter one should connect a : -

• A. High resistance in series with galvanometer
• B. Low resistance in series with galvanometer
• C. High resistance in parallel with galvanometer
• D. Low resistance in parallel with galvanometer

Answer 1

Answer: (A)

High resistance in series with galvanometer

Voltmeter is always connected in parallel to a circuit. Since Galvanometer is a very sensitive instrument, therefore it can not measure high potential difference. In order to convert a Galvanometer into voltmeter, a very high resistance known as "series resistance" is connected in series with the galvanometer.