The bacteria carry a net negative charge on their surfaces.

细菌的表面带有一个负电荷。

And then it would have a net positive charge.

然后它将产生净正电荷。

And then I would have a net positive charge.

然后我会有一个净正电荷。

This situation is called a charge imbalance, or net charge separation.

这种情况称为电荷不平衡或净电荷分离。

The water inside you is loaded with ions— atoms or molecules that have a net electrical charge.

你体内的水充满了离子— —带净电荷的原子或分子。

And generally there’s an equal number of each, meaning the net electric charge of the atom is 0.

通常每个原子的数量相等， 这意味着原子的净电荷为 0。

And it also shows that the net charge is distributed on the surface.

并且总电荷分布在表面上。

When you add up all these charges most objects tend to have a net charge that is about neutral.

当您将所有这些电荷加起来时，大多数物体往往具有大约中性的净电荷。

It says that you can never create a net electric charge.

产生总电荷，而不是 所以，只有电子可以从。

The stretched cell ends up with a net negative charge on one side and a net positive on the other.

拉伸的电池最终在一侧带有净负电荷，在另一侧带有净正电荷。

But whether the rod ends up with a net positive or negative charge depends on the materials that you use.

带正电或带负电 完成，取决于使用的材料。

Both the cloth and rod began with a neutral charge, but after friction, the rod has a net positive charge.

不带电，但摩擦后变粘 净正电荷。但棒子的可能性。

This process is known as charging by induction – creating a net charge without contacting another object.

按效果收费。电荷产生 完全不与其他组件接触。

So an electric field is generated from the outside of the shell, because of the net positive charge.

因此，电场是从外壳外部产生的 由于总电荷为正。

So an electric field surrounds any object with a net charge, and the direction of this field will depend on the charge.

因此，电场围绕着任何带有净电荷的物体，并且该电场的方向将取决于电荷。

Today we learned how all objects with net charge generate electric fields that affect all other charged materials.

今天我们了解到，总费用的项目 它生成影响其他带电材料的场。

And generally there's an equal number of each, meaning the net electric charge of the atom is 0.

他们的数量，这意味着净电荷 原子的电荷为零。

The neutral rod becomes polarized, with a net positive charge close to the charged rod and a negative charge on the opposite side.

不带电的棍子。棍子不带电 极化，总电荷为正。

So in order to have the sock and the shirt attracted to each other they must have opposite net charges because they're experiencing an attractive electric force.

因此，为了使袜子和衬衫相互吸引，它们必须具有相反的净电荷，因为它们正在经历吸引力的电力。

But the capacitor hasn’t gained any net charge – there’s just as much positive charge on the positive plate as there is negative charge on the negative one.

但是电容器没有获得任何净电荷——正极板上的正电荷与负极板上的负电荷一样多。