Electro Magnetic Induction And Alternating Currents Question 105
Question: Voltage and current in an ac circuit are given by $ V=5\sin ,( 100\pi t-\frac{\pi }{6} ) $ and $ I=4\sin ,( 100\pi t+\frac{\pi }{6} ) $ [Kerala PET 2001]
Options:
A) Voltage leads the current by $ 30^{o} $
B) Current leads the voltage by $ 30^{o} $
C) Current leads the voltage by $ 60^{o} $
D) Voltage leads the current by $ 60^{o} $
Show Answer
Answer:
Correct Answer: C
Solution:
Phase difference $ \Delta \varphi ={\varphi_{2}}-{\varphi_{1}}=\frac{\pi }{6}-( \frac{-\pi }{6} )=\frac{\pi }{3} $
