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Questions  

The resistance R=VI'  where   V=(100±5)Vand  I=(10±0.2)A. The percentage error in R is

a
5%
b
2%
c
3%
d
7%

detailed solution

Correct option is D

The percentage error in V is 5% and in I it is 2%.Hence, the total error in R would be % error = 5%+ 2%= 7%

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