Electro Magnetic Induction And Alternating Currents Question 172

Question: An ac voltage is applied to a resistance R and an 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

Options:

A) $ \pi /6 $

B) $ \pi /4 $

C) $ \pi /2 $

D) zero

Show Answer

Answer:

Correct Answer: B

Solution:

  • The phase difference $ \phi $ is given by $ \tan ,\phi =\frac{X_{L}}{R}=\frac{3}{3}=1\Rightarrow \phi =\frac{\pi }{4} $


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