A definition for zero potential
Electrophysiological Phenomena; Electrophysiology; Humans
Equations are developed for the potential due to a source and sink, or dipole, inside a circle of finite resistivity surrounded by a two-dimensional infinite medium of different resistivity. When the resistivity of the external medium is allowed to increase to infinity, the resulting equations give identical results to those presented by Bayley for the dipole potential in an insulating circle. A method of defining the zero of potential for a bounded medium is proposed.
NELSON CV, GASTONGUAY P. A definition for zero potential. Circ Res. 1959;7:1039-1049. doi:10.1161/01.res.7.6.1039