Physics · Electrical Measurements
What happens to the reading of an electrodynamometer wattmeter measuring real power when the power factor of a circuit is changed from unity power factor to a leading power factor (while keeping voltage and current constant)?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The wattmeter reading becomes zero
- 2The wattmeter reading increases
- 3The wattmeter reading decreases✓
- 4The wattmeter reading remains unchanged
Correct answer
The wattmeter reading decreases
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