Question

A coil of resistance $450\Omega$ and self-inductance $1.5 \text{ henry}$ is connected to an a.c. source of frequency $\frac{150}{\pi} \text{ Hz}$. The phase difference between voltage and current is

• A. $\tan^{-1}(0.5)$
• B. $\tan^{-1}(1)$
• C. $\tan^{-1}(1.5)$
• D. $\tan^{-1}(2.0)$

Hint:

When $X_L = R$, the phase difference is always 45° or $\pi/4$ radians.

Answer 1

The Correct Option is B