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GATE EE 2017 Set 1 — Question 23

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NAT+1 / -0MediumError AnalysisMeasurement PrinciplesElectrical & Electronic MeasurementsPower Factor MeasurementElectrical Quantity Measurement

Electrical & Electronic Measurements → Electrical Quantity Measurement → Error Analysis

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Question

The following measurements are obtained on a single phase load: V=220 V±1%V = 220\text{ V} \pm 1\%, I=5.0 A±1%I = 5.0\text{ A} \pm 1\% and W=555 W±2%W = 555\text{ W} \pm 2\%. If the power factor is calculated using these measurements, the worst case error in the calculated power factor in percent is ______. (Give answer up to one decimal place.)
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