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A multirange voltmeter can be construct...

A multirange voltmeter can be constructed by using a galvanometer circuit as shown in Fig. EP 4.21. We want to construct a voltmeter that can measure 2V, 20V and 200 V using a galvanometer of resistance `10 Omega` and that produces maximum deflection for current of 1 mA. find `R_1`, `R_2` and `R_3` that have to be used.

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