谁会物理专业的英语帮我翻一下这个使用说明书How is the current related to the potential gradient in conductor? If two terminal point on a conductor are held at a constant potential difference V, e.g., by connecting them to the elec
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谁会物理专业的英语帮我翻一下这个使用说明书How is the current related to the potential gradient in conductor? If two terminal point on a conductor are held at a constant potential difference V, e.g., by connecting them to the elec
谁会物理专业的英语帮我翻一下这个使用说明书
How is the current related to the potential gradient in conductor? If two terminal point on a conductor are held at a constant potential difference V, e.g., by connecting them to the electrodes of battery, then in equilibrium a steady current flows through the conductor. Let I be the current at either point, It is found that for many cases the current and potential difference are proportional, equation V=IR is Ohm’s law. The constant of proportionality R is called the resistance of the conductor. The SI unit of resistance is the ohm, 1/R is called the conductance, and its unit is Siemens. Ohm’s law holds to a very good approximation for many conductors. However, it is not a universal principle, and in sec.7.7 we will see an example where it doesn’t hold.
谁会物理专业的英语帮我翻一下这个使用说明书How is the current related to the potential gradient in conductor? If two terminal point on a conductor are held at a constant potential difference V, e.g., by connecting them to the elec
目前潜在的梯度相关指挥吗?如果两个终点在导线关在一个恒定势差V,例如,将它们连接到电极的电池,然后在平衡稳定的电流通过导体.让我变成当前在任何一个观点来看,这是发现,在很多情况下,现有的和潜在的差异比例,方程V =红外叫欧姆定律.比例常数R叫做导体的电阻.国际单位制的阻力欧姆,1 / R被称为导、及其单位是西门子.欧姆定律,坚持一个很好的近似为许多导体.然而,它不是一个普适原则,在sec.7.7我们可以看到一个例子并不持有.