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Can Zero Potential be Defined at Any Point in Electric Potential?
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[QUOTE="collinsmark, post: 4515857, member: 114325"] Yes, you can define the potential to be 0 at any place you want, assuming that there is not a point charge at that particular location. Electric potential always assumes [I]potential difference[/I], meaning that the potential at one point is always in reference to some other point. Assigning 0 Volts at infinity (meaning infinity is the reference potential) is merely a convention, not a hard and fast rule. If you choose some other place besides infinity as the 0 potential, you might get different numerical answers to the particular problem than the answers your textbook gives. But it's still valid for you to do that for your own purposes, as long as you are self consistent. But as you've implied, don't define the reference potential at the very location where a point charge resides. You'll get a nonsensical answer. But that's really no different from the situation where you define infinity as the location of 0 V and then try to find the potential at the very location where a point charge resides. In that situation you'll also get a nonsensical answer. [/QUOTE]
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Can Zero Potential be Defined at Any Point in Electric Potential?
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