Question

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. $\pi/6$

Answer 1

Answer: (A)

$\pi/3$

Answer 2

$\tan\varphi = \frac{X_{L}}{R} = \frac{\sqrt{3}R}{R} = \sqrt{3}$ ⇒ $\varphi = 60^{o} = \pi/3$