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 $



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