Electro Magnetic Induction And Alternating Currents Question 50
Question: In a series LCR circuit, resistance $ R=10\Omega $ and the impedance $ Z=20\Omega . $ The phase difference between the current and the voltage is [KCET (Engg./Med.) 1999]
Options:
A) $ 30^{o} $
B) $ 45^{o} $
C) $ 60^{o} $
D) $ 90^{o} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \cos \varphi =\frac{R}{Z}=\frac{10}{20}=\frac{1}{2},\Rightarrow ,\varphi =60^{o} $
