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PSPCL JE EE 2018 Previous Year Paper

- 1920-2000 W
- 2000-2080 W
- 1920-2040 W
- 1920-2080 W

Option 4 : 1920-2080 W

Given that full-scale deflection = 4000 watt

% error at full scale deflection = 2%

Error at full scale \(= 4000 \times \frac{2}{{100}} = 80\;watt\)

True power = 2000 watt

Range of Reading of wattmeter = true power ± error at full scale = 2000 ± 80 watt

= 1920 to 2080 watt
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