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 478
means of comparingtwo resistances, h and h; for when there is no current in thebridge CD, their ratio is that of the two resistances a and a, whichcan be adjusted at pleasure. Suppose that the four sides of the quadrilateral are made up ofmetal bars having no appreciable resistance, but that any… … Fig. 320. It we take a = a, then h = b; but the arms a and a may be in anyratio, and the condition of equilibrium is that the resistances of thebranches h and h shall be in the same ratio. The arms a and a areknown as the ratio arms. This arrangement of Wheatstones is frequently compared to…
Electricity · Magnetism
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