Alternating Current

NEET level, single correct, medium

2 of 190

Question 2 of 190

In an AC circuit, voltage V=100sin⁡(100t)V = 100\sin(100t) and current I=100sin⁡(100t+π/3)I = 100\sin(100t + \pi/3). Power factor is:

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Answer: (C) 0.50.5

Phase difference ϕ=π/3=60∘\phi = \pi/3 = 60^\circ. Power factor cos⁡ϕ=cos⁡60∘=0.5\cos\phi = \cos 60^\circ = 0.5.

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