Elementary treatise on physics, experimental and applied, for the use of colleges and schools (1898)
Ganot, A. (Adolphe), 1804-1887 · London, Longmans, Green · leaf 736
, a conception of the greatest importance introduced by Faraday. We must picture to ourselves a permanent magnet as having permanently associated with it a definite set of lines of force, which are not merely bound up with the fact that their existence is revealed by iron filings. Lines of force… … Fig. 686 Fig. 687 by suspending two long thin magnetised needles from threads at the ends ; when these are brought near each other, with like poles opposite, the direc¬ tion of the lines of force is the same in each, and the needles repel each other. In fig. 686 the magnetic curves represent the…
Physics
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