Elementary treatise on electricity and magnetism : founded on Joubert's "Traité élémentaire d'électricité" (1909)
Foster, G. Carey (George Carey), Porter, Alfred William, 1863-1939, Joubert, Jules François · London : Longmans · leaf 314
the magnetic moment equals the strength of thepositive charge into the distance between the two. Since this isso, it follows that all the theorems which were established inChapter V. in respect to electric force will be true also for polarfield. Thus, if a closed surface be drawn embracing the… … if the magnets lie entirely outside the surface. If, however, thesurface be drawn so as to enclose an unequal number of positiveand negative charges—for example, if in the case of the uniformlymagnetised filaiuent (191, i.) it surrounds only one of its ends—thenthe total outward normal field is 47r…
Electricity · Magnetism
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