Mathematics · Electrical Measurement and Aptitude
To measure the power factor of a balanced three-phase load, what is the minimum set of instruments required?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Two ammeters
- 2A pair of wattmeters✓
- 3One wattmeter and one ammeter
- 4One wattmeter and one voltmeter
Correct answer
A pair of wattmeters
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