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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
    In an n-type silicon, which of the following statement is true:

    A) Electrons are majority carriers and trivalent atoms are the dopants.

    B) Electrons are minority carriers and pentavalent atoms are the dopants.

    C) Holes are minority carriers and pentavalent atoms are the dopants.

    D) Holes are majority carriers and tiivalent atoms are the dopants.

    Correct Answer: C

    Solution :

    Option [c] is correct. Explanation: In an n-type silicon the holes are the minority carriers. An n-type semiconductor is obtained when pentavalent atoms, such as phosphorus, are doped in silicon atoms.


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