Electrical Engineering · Power Factor Measurement
संतुलित थ्री-फेस लोड का पावर फैक्टर मापने के लिए उपकरणों का न्यूनतम कौन सा सेट आवश्यक है?
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दो वाटमीटर (वाटमीटर का एक जोड़ा)
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