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Ohm's Law

The reduce th...

Question

The reduce the range of voltmeter, its resistance is to be reduced. A voltmeter has a resistance G and range V. What resistance connected in parallel will convert it into a voltmeter of range V/n?

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(n + 1) G

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(n - 1) G

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none of these

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Solution

The correct option is D none of these
When a resistance is connected in parallel, it will only reduce the resistance of the combination but will not reduce the range. For reducing the range, the resistance should be connected in series with the galvanometer. Thus, it can not be achieved by connecting a resistance in parallel with the voltmeter.

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