JCECE Medical JCECE Medical 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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