Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 412
tly (299, 300), the part of the plate on the leftbecomes the seat of closed currents ciiculating like the hands ofa watch, and the part on the right the seat of closed curientscirculating in the opposite direction, as indicated in the figure.The formei aie equivalent to a number of magnetic shells… … netic shells) and the fixed pole are such as to oppose the existing motion of the plate. The experiment may be easily made by means of a disc whichis made to rotate between the poles ofan electromagnet (Fig. 273). The disc,which before the passage of the cur-rent turns easily, offers a…
Electricity · Magnetism
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