Question

How to convert moving coil galvanometer into voltmeter?

Answer 1

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.

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Answer 2

Answer:

by connecting a high resistance in series

Explanation: A moving-coil galvanometer can be converted into a voltmeter by increasing its effective resistance by connecting a high resistance Rs in series with the galvanometer. The series resistance protects the meter and increases the range of the meter.