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Forums
Physics
Classical Physics
Electromagnetism
Capacitance of an isolated sphere - solid vs hollow
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[QUOTE="Nugatory, post: 6205949, member: 382138"] It does not, because it is describing a perfect (the word “ideal” is used more often) conductor, and that cannot happen in a perfect conductor. In an ideal conductor the charge density at a point can be arbitrarily high, so the crowding you’re describing never happens. Of course ideal conductors don’t really exist, but many real world conductors come so close that we can calculate capacitance as if they were ideal. Those “certain conditions” would be if we had a sphere made of insulating rather than conductive material - but here it specifically says we’re working with a conductive sphere. [/QUOTE]
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Forums
Physics
Classical Physics
Electromagnetism
Capacitance of an isolated sphere - solid vs hollow
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