The mathematical theory of electricity and magnetism (1911)
Jeans, James Hopwood, Sir, 1877-1946 · Cambridge [Eng.] : University Press · leaf 61
19 represents the distribution of the lines of force when the electric field is produced by two point charges, + 4e at .4 and —e at B. At infinity the resultant force will be 3e/r-, where r is the distance froma point near to A and B. The direction of this force is outwards. Thus nolines of force… … Fig. 19. strength e, while those from A to infinity have aggregate strength Se. Thetwo bundles of tubes of force are separated by the lines of force through C.At C the direction of the resultant force is clearly indeterminate, so that Gis a point of equilibrium. As the condition that C is a point…
Electricity · Magnetism
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