Measurements and Instrumentation

Q1: The power input and output in a device are 3650 W and 3385 W with each reading in doubt by ± 10 W. The percentage uncertainty in losses is

A ± 7.55%

B ± 3.77%

C ± 11.32%

D ± 15.09%

ANS:A - ± 7.55%

Losses = 3650 - 3385 = 265 W uncertainty = ± 20 W. .



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