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JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductors

  • question_answer
    The impurity atom added to germanium to make it N-type semiconductor is          [KCET 1993; KCET (Engg./Med.) 2000]

    A)            Arsenic                                   

    B)            Iridium

    C)            Aluminium                            

    D)            Iodine

    Correct Answer: A

    Solution :

               For N-type semiconductor, the impurity should be pentavalent.


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