Ampere's Law
安培环路定律
The magnetic field in space around an electric current is proportional to the electric current which serves as its source, just as the electric field in space is proportional to the charge which serves as its source. Ampere's Law states that for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop.
在电流传导的磁场空间中，磁场与作为其源的电流成正比，正如电场与作为其源的电荷成正比。安培环路定律指出，对于任何闭合回路路径，长度元素与磁场在长度元素方向上的乘积之和等于磁导率乘以回路内所包围的电流。
In the electric case, the relation of field to source is quantified in Gauss's Law which is a very powerful tool for calculating electric fields.
在电学情况下，场与源之间的关系在高斯定律中得到量化，而高斯定律是一个非常强大的工具，用于计算电场。
| Applications
应用 | More general form:Maxwell's equation
更一般的形式：麦克斯韦方程 |
Electromagnetic force
Magnetic field concepts
电磁力 磁场概念
| HyperPhysics***** Electricity and Magnetism
HyperPhysics ***** 电学和磁学 | R Nave |
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