CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2005

  • question_answer
    Identify the property which is not characteristic for a semiconductor?

    A)  At a very low temperatures, it behaves like an insulator

    B)  At higher temperatures two types of charge carriers will cause conductivity

    C)  The charge carriers are electrons and holes in the valence band at higher temperatures

    D)  The semiconductor is electrically neutral.

    Correct Answer: C

    Solution :

    At the higher temperature only electrons cross the forbidden gap and reach in valance band, so statement


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