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单词 Electrically conductive
释义

Electrically conductive

原声例句
学生科学报

On each side of the fabric, the researchers dropped a solution containing an electrically conductive polymer.

在织物的每一面， 研究人员都滴下了一种含有导电聚合物的溶液。

Crash Course 综合篇

Shiny, electrically conductive, and oh-so-useful, silver has been valued since ancient times and has a reputation for purity and warding off evil, whether in the form of werewolves or warts.

闪亮、导电且非常有用的银自古以来就受到重视，并以纯净和驱除邪恶（无论是狼人还是疣）而闻名。

中文百科

电阻率 Electrical resistivity and conductivity

（重定向自Electrically conductive）
电阻物质的两端接有导线。

电阻率（英语：Resistivity），又称电阻系数、导电率（非电导率），是描述材料导电性能的物理量。

电阻率在数值上等于单位长度、单位截面的某种物质的电阻，数值上等于长度为一米，横截面为一平方米的该种物质的电阻大小。

电阻率的倒数为电导率。电阻率与导体的长度、横截面积等因素无关，是导体材料本身的电学性质，由导体的材料决定，且与温度有关。

电阻率在国际单位制的单位是Ω·m，读作欧姆米，简称欧米。常用单位为“欧姆·厘米”。

电阻率较低的物质称为导体，常见导体主要为金属，而自然界中导电性最佳的是银。其他不易导电的物质如玻璃、橡胶等，电阻率较高，一般称为绝缘体。介于导体和绝缘体之间的物质（如硅）则称半导体。

英语百科

Electrical resistivity and conductivity 电阻率

（重定向自Electrically conductive）
A piece of resistive material with electrical contacts on both ends.
Filling of the electronic states in various types of materials at equilibrium. Here, height is energy while width is the density of available states for a certain energy in the material listed. The shade follows the Fermi–Dirac distribution (black=all states filled, white=no state filled). In metals and semimetals the Fermi level EF lies inside at least one band. In insulators and semiconductors the Fermi level is inside a band gap; however, in semiconductors the bands are near enough to the Fermi level to be thermally populated with electrons or holes.
Like balls in a Newton's cradle, electrons in a metal quickly transfer energy from one terminal to another, despite their own negligible movement.
Lightning is an example of plasma present at Earth's surface. Typically, lightning discharges 30,000 amperes at up to 100 million volts, and emits light, radio waves, X-rays and even gamma rays.[12] Plasma temperatures in lightning can approach 28,000 Kelvin (28,000 °C) (50,000 °F) and electron densities may exceed 1024 m−3.

Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) is an intrinsic property that quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI unit of electrical resistivity is the ohm⋅metre (Ω⋅m) although other units like ohm⋅centimetre (Ω⋅cm) are also in use. As an example, if a 1 m × 1 m × 1 m solid cube of material has sheet contacts on two opposite faces, and the resistance between these contacts is 1 Ω, then the resistivity of the material is 1 Ω⋅m.
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更新时间：2025/6/23 15:37:52