Electro Magnetic Induction And Alternating Currents Question 36
Question: In an ac circuit, a resistance of R ohm is connected in series with an inductance L. If phase angle between voltage and current be 45°, the value of inductive reactance will be [MP PMT/PET 1998]
Options:
A) $ \frac{R}{4} $
B) $ \frac{R}{2} $
C) R
D) Cannot be found with the given data
Show Answer
Answer:
Correct Answer: C
Solution:
$ \tan \varphi =\frac{X_{L}}{R},\Rightarrow ,\tan 45^{o}=\frac{X_{L}}{R}=1,\Rightarrow ,X_{L}=R $
