Electrical Engineering > GATE 2015 SET-2 > Power Measurement
The coils of a wattmeter have resistances 0.01Ω and 1000Ω; their inductances may be neglected. The wattmeter is connected as shown in the figure, to measure the power consumed by a load, which draws 25A at power factor 0.8. The voltage across the load terminals is 30V. The percentage error on the wattmeter reading is ________.

Correct : 0.15

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wattmeter error calculation electrical engineering GATE 2015 power factor correction load power measurement GATE electrical engineering 2015 wattmeter reading error power factor 0.8 load power consumption GATE 2015 Set-2

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