Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 67
y be. 32. Electric Force and Potential.—In order to see what is involved in the definition of potential given in (31), we will apply it to a special case wherethe electric force is known, thatof an electric field bounded bytwo concentric spherical con-ducting surfaces. Let p (Fig. 23)be a point in… … Fig. u 1 • <3 .• in the direction op (because the charge of the inner sphere will act atP as though it were concentrated at o, and the charge - Q onthe outer surface will exert no force at p). Hence the potential 33] FOKCE AND POTENTIAL 45 at P must be a quantity such that its rate of decrease…
Electricity · Magnetism
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