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Using the observed value of the voltmeter resistance calculate the resistance of the multiplier which should be used to increase the range of the voltmeter
Using the observed value of the voltmeter resistance calculate the resistance of the multiplier which should be used to increase the range of the voltmeter tenfold. Check that your value 1s is correct, by noting first the reading of the voltmeter connected directly to the power supply, and then the reading when the multiplier is inserted in series. For both measurements, make sure to evaluate the uncertainty on your reading. Compare these two values; did the multiplier affect them as expected?
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