V2EX ohmic

Ohmic

释义 Definition

Ohmic(欧姆的):指符合欧姆定律的(电学性质),即电流 \(I\) 与电压 \(V\) 成正比、与电阻 \(R\) 的关系满足 \(V = IR\)。常用于 ohmic contact(欧姆接触)ohmic resistor(线性电阻) 等。也可泛指“电流电压关系呈线性”的特性。

发音 Pronunciation (IPA)

/omk/

例句 Examples

The wire shows ohmic behavior at room temperature.
这根导线在室温下表现出欧姆特性。

In this experiment, the semiconductor forms an ohmic contact with the metal, so the current increases linearly as the voltage rises.
在这个实验中,半导体与金属形成欧姆接触,因此电压升高时电流会线性增加。

词源 Etymology

ohmic 来自物理学单位 ohm(欧姆,电阻单位),其名称纪念德国物理学家 Georg Simon Ohm(乔治西蒙欧姆),他提出了著名的欧姆定律。后缀 -ic 表示“……的/与……有关的”,因此 ohmic 意为“与欧姆(定律/电阻)有关的”。

相关词 Related Words

文学与著作 Notable Works

  • 《University Physics》(Young & Freedman):在电路与电阻章节中讨论欧姆定律与ohmic材料/元件。
  • 《Introduction to Solid State Physics》(Charles Kittel):在固体导电与载流子相关内容中涉及ohmic contact等术语。
  • 《The Art of Electronics》(Horowitz & Hill):在实际电路设计与元件特性讨论中会用到ohmic这一描述(如线性电阻行为)。
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