Q: A 220 V, 50 Hz, single-phase energy meter has a constant of 1200 revolutions/kWh. What will the speed of the disc if the current is 10 A at a power factor of 0.8 lagging? एक 220 V, 50 Hz, एकल-कला ऊर्जा मीटर का स्थिरांक 1200 परिक्रमण/kWh है। यदि 0.8 पश्चगामी शक्ति गुणांक पर धारा 10A हो, तो डिस्क की गति कितनी होगी?
A.
44 rpm
B.
22. rpm
C.
35.2 rpm
D.
66 rpm
Correct Answer:
Option C -
Explanations:
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