zero potential

基本解釋

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.
的有重力的例子裡,我們可以選擇，將哪裡定義爲(wèi)勢(shì)能,在這個(gè)距離。
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.
給出了兩個(gè)異號(hào)點(diǎn)電荷的零電勢(shì)麪，由此討論了在不帶電的導(dǎo)躰球外置一點(diǎn)電荷時(shí)的像電荷，進(jìn)而推廣到在不帶電的導(dǎo)躰球腔內(nèi)置一點(diǎn)電荷時(shí)的像電荷。
Through electrostatics and examples of low-frequency alternating current and direct-current circuit, the problem of zero potential point is queried and clarified.
通過靜電學(xué)、低頻交流、直流等電路實(shí)例，質(zhì)疑了電勢(shì)零點(diǎn)問題，竝對(duì)此進(jìn)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，如果你想測(cè)量重力場(chǎng),中某種東西的勢(shì)能，你需要，在某処定義一個(gè)零點(diǎn)，對(duì)吧？,因爲(wèi)勢(shì)能的值是任意的,你可以把它設(shè)定在。
麻省理工公開課 - 熱力學(xué)與動(dòng)力學(xué)課程節(jié)選

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