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23 Nov 2019
The coil of wire in a galvanometer has a resistance of RC = 67.7.The galvanometer exhibits a full-scale deflection when the currentthrough it is 0.276 mA. A resistor is connected in series with thiscombination so as to produce a voltmeter. The voltmeter is to havea full-scale deflection when it measures a potential difference of13.7 V. What is the resistance of this resistor?
The coil of wire in a galvanometer has a resistance of RC = 67.7.The galvanometer exhibits a full-scale deflection when the currentthrough it is 0.276 mA. A resistor is connected in series with thiscombination so as to produce a voltmeter. The voltmeter is to havea full-scale deflection when it measures a potential difference of13.7 V. What is the resistance of this resistor?
Jean KeelingLv2
19 Nov 2019
