a A Si bar 1 um long and 100 m in cross sectional area is doped with 10 7 cm phosphorus Find the current at 300 K with 10 V

Question

a A Si bar 1 um long and 100 m in cross sectional area is doped with 10 7 cm phosphorus Find the current at 300 K with 10 V applied b How long does it take an average electron to drift 1 um in pure Si at an electric field of 100 V cm Repeat for 105 V cm EXAMPLE 3 7

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