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Discussion :: Electronic Devices and Circuits

  1. What is the value of the effective density of states function in the conduction band at 300k?
    2. A.
    3*1019 cm-3
    B.
    0.4*10-19 cm-3
    C.
    2.5*1019 cm-3
    D.
    2.5*10-19 cm-3

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    Answer : Option C

    Explanation :

    electronic-devices-circuits-questions-answers-electrons-holes-semiconductor-q2 Substituting the values of mn=m0 ,h=6.626*10-34J/s ,k=1.38*10-23 and T=300K, we get Nc=2.5*1019 cm-3.

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