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(a) Briefly explain how a galvanometer i...

(a) Briefly explain how a galvanometer is converted into a voltmeter.
(b) A voltmeter of a certain range is constructed by connecting a resistance of `980 Omega` in series with a galvanometer. When the resistance of `470 Omega` is connected in series, the range gets halved. Find the resistance of the galvanometer.

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### Step-by-Step Solution: **(a) Converting a Galvanometer into a Voltmeter:** 1. **Understanding the Devices:** - A **galvanometer** is an instrument used to detect small electric currents. - A **voltmeter** measures the potential difference (voltage) across two points in a circuit. ...
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