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Voltmeter

The conversio...

Question

The conversion of a moving coil galvanometer into a voltmeter is done by

A

introducing a resistance of large value in series

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B

introducing a resistance of small value in parallel

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C

introducing a resistance of large value in parallel

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D

introducing a resistance of small value in series

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Solution

The correct option is A introducing a resistance of large value in series
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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