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JEE Main & Advanced Physics Semiconducting Devices Question Bank Graphical Questions

  • question_answer
    Different voltages are applied across a P-N junction and the currents are measured for each value. Which of the following graphs is obtained between voltage and current  [MP PET 1996; UPSEAT 2002]

    A)                             

    B)                     

    C)                             

    D)                     

    Correct Answer: C

    Solution :

               PN junction has low resistance in one direction of potential difference +V, so a large current flows (forward biasing). It has a high resistance in the opposite potential difference direction ?V, so a very small current flows (Reverse biasing).


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