2. Questions Bank
  3. JEE Main & Advanced
  4. Physics
  5. Alternating Current / प्रत्यावर्ती धारा

JEE Main & Advanced Physics Alternating Current / प्रत्यावर्ती धारा Question Bank Alternating Current, Voltage and Power

  • question_answer
    Voltage and current in an ac circuit are given by \[V=5\sin \,\left( 100\pi t-\frac{\pi }{6} \right)\] and \[I=4\sin \,\left( 100\pi t+\frac{\pi }{6} \right)\] [Kerala PET 2001]

    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 \[{{60}^{o}}\]

    Correct Answer: C

    Solution :

               Phase difference \[\Delta \varphi ={{\varphi }_{2}}-{{\varphi }_{1}}=\frac{\pi }{6}-\left( \frac{-\pi }{6} \right)=\frac{\pi }{3}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner