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 284
Fig. 168. to the element dv at q is - Advthe same solid angle at p, dv and … dv >2 are ■2 to each other asPQ^ : PQ^. Consequently thecontributions of these twoelements to the total poten-tial at P are equal and oppo-site, and as the whole shellcan be exhaustively dividedup into similar pairs ofmutually compensating ele-ments, the total potential atany internal point is…
Electricity · Magnetism
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