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1. |
In the two-wattmeter method of three phase power measurement of a balanced load, if the reading of one metre is – 200 W, then then power factor of the load is ______. |
A. | greater than 0.5 |
B. | less than 0.5 |
C. | equal to 0.5 |
D. | equal to zero |
Answer» C. equal to 0.5 | |