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 518
s of wire. The ring is placed between the poles ofa horse-shoe magnet or of an electromagnet,and is made to rotate uniformly (Fig.334). Two brushes, r i.I, rest on the col-lector at the ends of a diameter, which is—9^ nearly at right angles to the line of the Fig. 334. poles of the magnet, and… … 496 CONTINUOUS-CURRENT MACHINES [422-
Electricity · Magnetism
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