VMMC VMMC Medical Solved Paper-2003

  • question_answer
    When a junction diode is reverse biased, the flow of current across the junction is mainly due to:

    A)  diffusion of charges

    B)  depends upon the nature of material

    C)  drift of charges

    D)  both drift and diffusion of charges.

    Correct Answer: A

    Solution :

    When a \[~p-n\] junction diode is reverse biased, the majority carriers do not cross the junction. However due to diffusion of charges a very little amount of current flows.


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