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You are attempting question 70
The intrinsic carrier density of a rectangular specimen of Ge is 2.5x105 /m². The length,
width, and height of the specimen are 20 mm, 3 mm, and I mm respectively. Determine
the total current and intrinsic conductivity if a potential difference of 8 V is applied across
the length of the specimen. Given electron and hole mobility as 0.39 m / Vs and
0.19 mº/Vs respectively.
(a) 2.78 mA, 2.32 si/m
(b) 2.18 mA, 2.02 si/m
(c) 2.78 mA, 132 si/m
(d) 1.78 mA, 1.32 si/m
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D
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