Electro Magnetic Induction And Alternating Currents Question 55
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 [KCET (Engg.) 2000]
Options:
A) $ \pi /3 $
B) $ \pi /2 $
C) $ \pi /4 $
D) $ \pi /6 $
Show Answer
Answer:
Correct Answer: A
Solution:
$ \tan \varphi =\frac{X_{L}}{R}=\frac{\sqrt{3},R}{R}=\sqrt{3} $
Þ $ \varphi =60^{o}=\pi /3 $
