The potential difference between the charges is measured in volts.

电荷之间的电位差是用伏特来测量的。

Now let’s put our new expressions to the test and find the electric potential difference in a real scenario.

现在让我们对新表达式进行测试， 并找出真实场景中的电势差。

They work because certain materials, such as bismuth telluride, generate an electrical potential difference within themselves if one part is hotter than another.

它们之所以能起作用是因为某些材料，比如碲化铋，如果其中一部分比另一部分热，内部就会产生电位差。

Now let's put our new expressions to the test and find the electric potential difference in a real scenario.

现在让我们测试一下我们的新术语， 找出现实场景中的电势差。

And the electric potential difference is also called voltage, which is another way of describing a drop in electric potential.

电势差也称为电压。 这只是描述低延迟的另一种方式。

And this drop in potential energy, divided by the test charge's magnitude, gives us the electric potential energy difference per unit charge, also known as the electric potential.

势能随着测试电荷量的减少给我们带来了差异 单次充电中的电势能，又称电势。

Dr Stachewicz and Mr Ura experimented with different potential differences between needle and drum and eventually found one that resulted in meshes able to collect 50% more water than commercial versions, at no extra cost of production.

斯塔切薇兹博士和尤拉先生对针和滚筒之间的不同电势差进行了实验，最终找到了一种能比商业版本多收集50%水的网眼，而且不需要额外的生产成本。