JEE Main & Advanced Physics Semiconducting Devices Question Bank Semiconductors

  • question_answer
    Which impurity is doped in Si to form N-type semi-conductor?   [CBSE PMT 1996; AIEEE 2002]

    A)            Al   

    B)            B

    C)            As  

    D)            None of these

    Correct Answer: C

    Solution :

               Because As is pentavalent impurity.


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