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JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductors

  • question_answer
    In a semiconductor, the concentration of electrons is \[8\times {{10}^{14}}/c{{m}^{3}}\]and that of the holes is \[5\times {{10}^{12}}c{{m}^{3}}.\] The semiconductor  is [MP PMT 1997; RPET 1999; Kerala PET 2002]

    A)            P-type                                    

    B)            N-type

    C)            Intrinsic                                  

    D)            PNP-type

    Correct Answer: B

    Solution :

               Since ne > nh; the semiconductor is N-type.


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