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JEE · NEET Previous Year Question

$The power factor of an AC circuit containing peak current 2 A and peak voltage 1 V is 1/2, then the angle between voltage and current is$

Topic: JEE PYQ

Answer: D. Full step-by-step solution below.

A $30^{\circ}$
B $45^{\circ}$
C $90^{\circ}$
D $60^{\circ}$

Correct answer: D

Solution

(d) Power Factor = \frac{1}{2} \Rightarrow \frac{1}{2} = cos φ \Rightarrow cos φ = cos 60^{\circ} \Rightarrow φ = 60^{\circ}

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