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 366
Fig. 232. … Fig. 233. 344 ENERGY OF A CURRENT [275 connected with the terminals of a battery, the wheel begins torotate. If the current goes from the centre to the mercury, andthe north pole is nearest the observer, the lower part of the wheelmoves towards the right. Suppose the apparatus placed in a uniform…
Electricity · Magnetism
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