Q. An ac voltage is applied to a resistance $R$ and inductor $L$ in series. If $R$ and the inductive reactance are both equal to $3\Omega$, the phase difference between the applied voltage and the current in the circuit is
A) Zero
B) $\pi/6$
C) $\pi/4$
D) $\pi/2$
Explanation
(c) $\tan\phi = \frac{X_{L}}{R} = 1\ \therefore\phi = 45{^\circ}$ or $\pi/4$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.