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Molecules and Crystals

Problem 6.213

The Hall effect turned out to be not observable in a semiconductor whose conduction electron mobility was η=2.0\eta=2.0 times that of the hole mobility. Find the ratio of hole and conduction electron concentrations in that semiconductor.

Reveal Answer
n+/n−=η2=4.0n^{+} / n^{-}=\eta^{2}=4.0
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