Numerical -Maximum % error in resistance value for given % errors of voltmeter & ammeter

Q.  While measuring resistance by the voltmeter-ammeter method, the maximum possible percentage error in the voltmeter and ammeter are ± 1.8% and ± 1.2% respectively. Then the maximum possible percentage error in the value of resistance will be
- Published on 03 Nov 15

a. ± 3%
b. ± 4%
c. ± 4.2%
d. ± 4.8%

ANSWER: ± 3%

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