These freely moving charged particles behave very differently from the particles in other types of matter.

这些自由移动的带电粒子与组成其他物质状态的粒子的行为很不一样。

But, what's important now is the fact that a moving electric charge generates a magnetic field.

但重要的是，每个移动的带电电子都会产生一个磁场。

A basic law of physics called the Lorentz force  is that all moving charged particles such as electrons are affected by magnetic fields.

物理学的基本定律称为洛伦兹力，即所有运动的带电粒子（例如电子）都会受到磁场的影响。

Currents are made up of moving electric charges, so it makes sense that a magnetic field would also exert a force on single electric charges that pass through it.

电流由移动的电荷组成，因此磁场也会对穿过它的单个电荷施加力是有道理的。