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Discussion :: Materials and Components

  1. The minority carrier life time and diffusion constant in a semiconducting material are 100 μs and 100 cm2/s respectively. The diffusion length of carriers is

    2. A.
    0.1 cm
    B.
    0.01 cm
    C.
    0.0141 cm
    D.
    1 cm

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    Answer : Option A

    Explanation :

    Diffusion length = sqrt(Carrier life time x Diffusion constant) = (100 x 10-6 x 100)0.5 = 0.1 cm.

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