V2EX resistivity

Resistivity

定义 Definition

Resistivity(电阻率)是物理学中描述材料阻碍电流通过能力的物理量。电阻率越高,材料导电性越差。它是电阻的固有属性,与材料的形状和大小无关。

发音 Pronunciation

/rizstvti/

例句 Examples

The resistivity of copper is very low, which makes it an excellent conductor of electricity.
铜的电阻率非常低,这使它成为一种优良的导电体。

Researchers measured the resistivity of the new alloy at various temperatures to determine its suitability for use in semiconductor devices.
研究人员在不同温度下测量了这种新合金的电阻率,以确定其是否适合用于半导体器件。

词源 Etymology

Resistivityresistive(有电阻的)加上名词后缀 -ity 构成。Resistive 源自拉丁语 resistere,意为"抵抗、对抗",由 **re-**(向后)和 sistere(站立、使停止)组成。后缀 -ity 表示性质或状态。该词在19世纪随着电学研究的发展而被广泛使用,用于精确描述材料本身的电阻特性。

相关词汇 Related Words

文学与学术引用 Literary & Academic References

  • 《费曼物理学讲义》(The Feynman Lectures on Physics)by Richard Feynman 在讨论电磁学与材料性质时详细解释了电阻率的概念。
  • 《固体物理导论》(Introduction to Solid State Physics)by Charles Kittel 经典固体物理教材,深入讨论了不同材料的电阻率及其温度依赖性。
  • 《经典电动力学》(Classical Electrodynamics)by John David Jackson 在电磁理论框架下系统阐述了电阻率与欧姆定律的关系。
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