JCECE Engineering JCECE Engineering Solved Paper-2007

  • question_answer
    Pure silicon doped with phosphorus is a

    A)  metallic conductor

    B)  insulator

    C)  \[n-\]type semiconductor

    D)   \[p-\]type semiconductor

    Correct Answer: C

    Solution :

    Excess of one valence electron in \[P\] atom \[(5\] valence electron) over \[Si\,\,\,(4\] valence electron) will form \[n-\]type semiconductor.


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