zero potential

基本解释

So in the case that we have the near-Earth situation of gravity, =0 we had a choice where we put our zero potential energy.
的有重力的例子里,我们可以选择，将哪里定义为势能,在这个距离。
By the plane of zero potential due to two opposite point charges, the image charge is discussed when a point charge is presented near a conducting sphere and in a hollow conducting sphere.
给出了两个异号点电荷的零电势面，由此讨论了在不带电的导体球外置一点电荷时的像电荷，进而推广到在不带电的导体球腔内置一点电荷时的像电荷。
Through electrostatics and examples of low-frequency alternating current and direct-current circuit, the problem of zero potential point is queried and clarified.
通过静电学、低频交流、直流等电路实例，质疑了电势零点问题，并对此进行了澄清。

You know, if you want to measure the potential energy of something in a gravitational field, you have to define the zero somewhere, right, because it's arbitrary. You can set it anywhere you want. It's the same with enthalpy.
你知道，如果你想测量重力场,中某种东西的势能，你需要，在某处定义一个零点，对吧？,因为势能的值是任意的,你可以把它设定在。
麻省理工公开课 - 热力学与动力学课程节选

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