A single wattmeter is connected to measure the reactive power of a three-phase, three-wire balanced load. The line current is 17A and the line voltage is 440V. Calculate the power factor of the load if the reading of the wattmeter is 4488 VAR.
(a) 0.6
(b) 0.8
(c) 1
(d) 1.2
The question was posed to me in an online quiz.
I'm obligated to ask this question of Power Measurement in Three-Phase Circuits in chapter Polyphase Circuits of Network Theory