Electronics and Communication Engineering - Measurements and Instrumentation - Discussion

Discussion Forum : Measurements and Instrumentation - Section 4 (Q.No. 16)
16.
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
± 0.7%
± 0.9%
± 1.2%
± 0.3%
Answer: Option
Explanation:

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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