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1. |
Two watt-meters, which are connected to measure the total power on a three-phase system supplying a balanced load, read 20.5 kW and -3.5 kW respectively. The total power is? |
A. | 13.0 kW |
B. | 17 kW |
C. | 15 kW |
D. | 19 kW |
Answer» E. | |