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electronics and communication engineering measurements and instrumentation
1. In 3 phase power measurement by two wattmeter method, the reading of one wattmeter is zero. The power factor of load is
(A): 0
(B): 0.5
(C): 0.8
(D): 1
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By: guest on 02 Jun 2017 01.02 am
When p.f. = 0.5, 0 = 60° and one of the wattmeters reads zero.
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