To convert a galvanometer into a voltmeter,on | vedclass

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(A) Key Idea: $A$ galvanometer has a low internal resistance,whereas a voltmeter must have a very high resistance to measure potential difference with

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High resistance in series with galvanometer

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(A) Key Idea: $A$ galvanometer has a low internal resistance,whereas a voltmeter must have a very high resistance to measure potential difference without drawing significant current from the circuit.To convert a galvanometer into a voltmeter,we need to increase its total resistance. This is achieved by connecting a high resistance in series with the galvanometer coil. The total resistance of the voltmeter becomes $R_{total} = G + R$,where $G$ is the galvanometer resistance and $R$ is the high series resistance.Note: The resistance of an ideal voltmeter should be infinite.

To convert a galvanometer into a voltmeter,one should connect a

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