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VITEEE 2013 Solved Paper

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Question : 3

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Mobilities of electrons and holes in a sample of intrinsic germanium at room temperature are 0.36 m2 V−1s−1 and 0.17 m2 V−1s−1. The electron and hole densities are each equal to 2.5 x 1019 m3. The electrical conductivity of germanium is

4.24 Sm−1
2.12 Sm−1
1.09 Sm−1
0.47 Sm−1

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