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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Charge-carrier density ： ウィキペディア英語版 Charge-carrier density Charge-carrier density denotes the number of charge carriers per volume. It is measured in m−3. As any density it can depend on position. It should not be confused with the charge density, which is the number of charges per volume at a given energy. The carrier density is obtained by integrating the charge density over the energy that the charges are allowed to have. Charge-carrier density is a particle density, so integrating it over a volume $V$ gives the number of charge carriers $N$ in that volume $N=\backslash int\_V\; n(\backslash mathbf\; r)\; \backslash ,\backslash mathrmV$. where :$n(\backslash mathbf\; r)$ is the position-dependent charge-carrier density. If the density does not depend on position and is instead equal to a constant $n\_0$ this equation simplifies to $N=V\backslash cdot\; n\_0$. Charge-carrier densities involve equations concerning the electrical conductivity and related phenomena like the thermal conductivity. ==Measurement== The density of charge carriers can be determined in many cases using the Hall effect, the voltage of which depends inversely on the density. Such measurements show that the density for silver is around 1.070·1028 m−3 or around 17,763 moles/m^3. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Charge-carrier density」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.