Figure 7
From: Classification of the extracellular fields produced by activated neural structures
The potentials generated by a conducting sphere of radius 0.1 mm held at constant potential 1 placed in cylindrical volume conductors of differing sizes. The flat ends of the cylinder are at ground potential and the curved surface is taken as an insulator. Note that the cylinder has length 10 mm and extends from -5 to 5 on either side of the point z = 0.