2. Solved Papers
  3. AIIMS

AIIMS AIIMS Solved Paper-2009

  • question_answer
    An alternating current i in an inductance coil varies with time according to the graph given below. Which one of the following graphs gives the variation of voltage with time?

    A)

    B)

    C)

    D)

    Correct Answer: C

    Solution :

    When the current increases the emf induced is \[V=+L\frac{di}{dt}(say)\]                  ?...(i) When current decreases, emf induced is. \[V=-L\frac{di}{dt}\]                    ?.(ii) The voltage induced changes This is shown in graph (c).


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