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Two scales on a voltmeter measure voltages up to 21.0 and 30.9 V,respectively. The resistance connected in series with thegalvanometer is 1530 for the 21.0-V scale and 3020 for the 30.9-V scale. Determine(a) the coil resistance and (b) the full-scale current of the galvanometer that is used in the voltmeter.

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