@JohnRennie but why we need two conductors? a single charged particle stores the energy in the electric field?
@JohnRennie also sir, i have one more doubt, in current electricity, when a point is earthed we take that point's potential=0, this is just convention, ryt?
We don't need two conductors e.g. the capacitance of a single sphere of radius R is: C = 4𝜋ε₀R
The capacitance of a single object is sometimes called self capacitance but it is just capacitance.
@PinkAura Yes. We could take the zero of potential to be anywhere we want, and by convention we take Earth to be zero. That means any conductor that is earthed has a potential of zero by definition.
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