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JEE Main & Advanced Sample Paper JEE Main Sample Paper-5

  • question_answer
    Directions (Q. No. 16): A voltage source\[V={{V}_{0}}\sin \] (100 t) is connected to a black box in which there can be either one element out of L, C, R or any two of them connected in series. At steady state the variation of current in the circuit and the source voltage are plotted together with time, using an oscilloscope as shown The element(s) present in black box is/are

    A)  only C                  

    B)  L and C

    C)  L and R                

    D)  R and C

    Correct Answer: D

    Solution :

     As current is leading the voltage by\[\frac{\pi }{2}\]. Hence, circuit must be R-C circuit.


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