Two wattmeters are used to measure the power in a 3 -phase balanced system. What is the power factor of...

Two wattmeters are used to measure the power in a 3 -phase balanced system. What is the power factor of the load when one wattmeter reads twice the other ? 

(a) 0 (b) 0.5 (c) 0.866 (d) 1
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Two wattmeters are used to measure the power in a 3 -phase balanced system. What is the power factor of the load when one wattmeter reads twice the other ?

 0.866

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