Q. In an ac circuit the reactance of a coil is $\sqrt{3}$ times its resistance, the phase difference between the, voltage across the coil to the current through the coil will be
A) $\pi/3$
B) $\pi/2$
C) $\pi/4$
D) $\pi/6$
Explanation
(a) $\tan\phi = \frac{X_{L}}{R} = \frac{\sqrt{3}\ R}{R} = \sqrt{3} \Rightarrow \phi = 60{^\circ} = \pi/3$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.