Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 133
It is convenient, however, toconsider all points at infinity to be at zero potential, since the field atan infinite distance from our electric charges is zero. Thus if the point h be situated at infinity, r = 0 and potential at a is-. Equipotential Surfaces.—An equipotential surface is one… … Fig. 128. second charge of 20 units are also shown, and in the left-hand upperhalf of the figure the resultant equipotential surfaces are shown asdotted lines, for the case in which this second charge is negative. Thepotential at any point is the algebraic sum of the potentials due tothe two…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
