ISRO Scientist Electrical Practice Questions - ISRO Scientist Engineer SC - Electrical Engineering Exam

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An AC voltage v(t) = 100 cos(314t + 30°) V is applied to a load, resulting in a current i(t) = 5 cos(314t - 30°) A. What are the active power and power factor of the load?

250 W, 0.5 lagging 250 W, 0.5 leading 125 W, 0.5 lagging 125 W, 0.866 leading

Correct Answer:

125 W, 0.5 lagging

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