Punjab Medical Punjab - MET Solved Paper-2003

  • question_answer
    In junction diode, the holes are because of:

    A)  missing electrons           

    B)  extra electrons

    C)  protons                              

    D)  neutrons

    Correct Answer: A

    Solution :

    In semiconductor, when an electron leaves its place, a positive charge is left behind and it is known as hole. Hence, holes are created because of missing of electrons.


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