outer electric potential, \(\psi\)

https://doi.org/10.1351/goldbook.O04349
@[email protected] outside the phase concerned. For a conducting sphere of excess charge \(Q\) and radius \(r\) in vacuum \(\psi =\frac{Q}{4\ \pi \ ɛ_{0}\ r}\).
Source:
Green Book, 2nd ed., p. 59 [Terms] [Book]