railway DFCCIL Executive 2025 Mock Test Electrical and Electronics Measurements Measurement of Power Measurement of Poly Phase Power
The power consumed by a balanced 3-ph load is measured by two-wattmeter method. The meter readings are 8 kW and 4 kW. The power factor of the load is
1
Zero
2
0.5
3
Between zero and 0.5
4
Between 0.5 and Unity