At the other end, the current energizes an electromagnet and this attracts the armature.

在另一端，流使铁充，并吸到枢。

The Large Hadron Collider at Cern is a 27km loop of powerful electromagnets.

欧洲核子研究组织大型子对撞机是一个长达27公大线圈。

For you though, you're going to use the electromagnet without the crane.

不过对你来说， 你要使用是没有起重机铁。

These electromagnets will help keep the superhot plasma in the center of a tube.

这些铁将有助于将超热等离子体保持在管子中心。

And this machine is just an extreme way that we can demonstrate how electromagnets work.

而这台机器只是我们展示铁工作原一种极端方式。

One is an electromagnet embedded in a static component, known as a stator.

其中一个是嵌入在静止部件中铁，这个静止部件被称为定子。

Electromagnets are materials that become magnets in the presence of electricity.

体是在有情况下变成铁材料。

This makes electromagnets quite different from permanent magnets.

这使得体与永体有很大不同。

We have a ring of iron but on the left side we have an electromagnet.

我们有一个铁环，但在左边我们有一个铁。

Generate this talk using a spinning reaction wheel and an electromagnet that interacts with Earth's magnetic field.

使用旋转反作用轮和与地球场相互作用铁来生成这次讨论。

Changing the plasma flow would also change the craft's trajectory, at a rate controllable via the electromagnets.

改变等离子流也会改变飞行器轨迹，其速率可通过铁控制。

This electromagnet is composed of a coil of wire, which uses electrical current to generate a magnetic field.

这个铁由一圈线组成，利用流产生场。

So let's take a look at that and compare permanent magnets to electromagnets.

让我们看一下并将永体与体进行比较。

Electromagnets are typically made of loops of wire and a coil.

体通常由线圈和线圈制成。

But essentially what you do is you take an electromagnet.

但基本上你所做就是使用一个铁。

Since this is an electromagnet, I could turn it off and the person is going to fall down.

既然这是个铁，我一断，那个人就会掉下来。

The mouse was just a magnet on wheels essentially, following an electromagnet controlled by the position of the relay switches.

鼠标本质上只是一个装有轮子铁，它跟随一个由继器开关位置控制铁移动。

So we could take an electromagnet.

所以我们可以使用一个铁。

This, though, required both high pressure, which is expensive to create, and the electromagnets themselves, which are costly to buy and costly to run.

不过这需要两种高压，成本很高，铁本身购买和运行成本就很高。

So the reason that you can have things like electromagnets and dynamos is because electricity and magnetism kind of work together.

所以你可以有像铁和发机这样东西，是因为和是协同工作。