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electronics and communication engineering measurements and instrumentation
1. The current passing through a resistance of 100 ± 0.2% Ω is 2 ± 0.5% A. The limiting error in computation of power will be
(A): ± 0.3%
(B): ± 0.7%
(C): ± 0.9%
(D): ± 1.2%
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By: guest on 02 Jun 2017 01.01 am
Limiting error = 2 x 0.5 + 0.2 = ± 1.2% (we have to take 2 x 0.5 because power ∝ I2).
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