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Answer to Question #44503 in Electricity and Magnetism for danish
Question #44503
The length of potentiometer wire is 600cm and it carries a current of 40mA. For a cell of e.m.f. 2V and
internal resistance 10ohm, the null point is found to be at 500cm. If a voltmeter is connected across the
cell, the balancing length is decreased by 10cm. Find (a)the resistance of whole wire. (b) reading of
voltmeter and (c) resistance of voltmeter
internal resistance 10ohm, the null point is found to be at 500cm. If a voltmeter is connected across the
cell, the balancing length is decreased by 10cm. Find (a)the resistance of whole wire. (b) reading of
voltmeter and (c) resistance of voltmeter
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