WB JEE Medical WB JEE Medical Solved Paper-2006

  • question_answer
    Then \[n-\]type semiconductors are obtained,when germanium is doped with :

    A)  arsenic                

    B)  phosphorus

    C)  antimony                           

    D)  any one of these

    Correct Answer: D

    Solution :

                     When a pure (intrinsic) semiconductor such as germanium is doped with pentavalent impurity, then n-type semiconductor isobtained. Arsenic, phosphorus and antimony all are pentavalent impurity, so the correct option is .


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