Electrical Engineering · Measurements
A single-phase induction watt-hour meter operating at 200 V has a meter constant of 200 revolutions per kWh. What will be the rotational speed of the meter disc in rpm if the load current is 20 A at a power factor of 0.8 lagging?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110.67 rpm✓
- 242.33 rpm
- 333.67 rpm
- 421.67 rpm
Correct answer
10.67 rpm
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