Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 368
pon the area at the origin of thetube. If the charge at each end of such a tube is unity, the tube^of force is called the unit tube. 319. Lines of Force and Equipotential Surfaces are Perpen-dicular to Each Other. Inasmuch as no component of the forceexists parallel to an equipotential surface, it… … FiG. 203. Lines of forceand equipotential sur-faces about a positively-charged sphere. Fig. 204. Lines of force and equipotential surfacesabout two spheres, one charged positively and theother negatively. pendicular to each other. Accordingly, if the equipotential sur-faces about a charged sphere…
Physics
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