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  3. 12th Class
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  5. Semiconducting Devices

12th Class Physics Semiconducting Devices Question Bank MCQs - Semiconductor Electronics: Materials, Devices and Simple Circuits

  • question_answer
    When the conductivity of a semiconductor is due to rupture of its covalent bond only then the semiconductor is called

    A) Intrinsic

    B) Extrinsic

    C) Donor

    D) acceptor

    Correct Answer: A

    Solution :

    Option [a] is correct.
    Explanation:  In intrinsic semiconductor, conductivity increases with rise of temperature due to rupture of covalent bonds and thus charge carriers become available.
    In extrinsic semiconductor, conductivity increases due to doping and also due to rupture of covalent bonds with rise of temperature.


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