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JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductors

  • question_answer
    When Ge crystals are doped with phosphorus atom, then it becomes       [AFMC 1995; Orissa PMT 2004]

    A)            Insulator                                

    B)            P-type

    C)            N-type                                    

    D)            Superconductor

    Correct Answer: C

    Solution :

               Phosphorus is pentavalent.


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