Units and Measurements · Significant figures & errors
In an experiment to determine the resistance of a given wire using Ohm's law, the voltmeter and ammeter readings are noted as 10V and 5 A, respectively. The least counts of voltmeter and ammeter are 500 mV and 200 mA, respectively. The estimated error in the resistance measurement is
- (1)0.25
- (2)2
- (3)2.5
- (4)0.18
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