The resistance R = V I , where V = 50 ± 2   V and I = 20 ± 0 . 2   A . The percentage…

The resistance R=VI, where V=50±2 V and I=20±0.2 A. The percentage error in R is x %. The value of x to the nearest integer is ________.

Solution

ΔRR×100=ΔVV×100+ΔII×100

% error in R=250×100+0.220×100

% error in R=4+1

% error in R=5%

Asked in: JEE Main 2021 (16 Mar Shift 1)

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