Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 707
ch are placed incontact with the poles. Acted on inductively, they become powerful tem-porary magnets, possessingopposite polarity to that ofthe inducing pole ; they thusreact in turn on the perma-nent magnetism of the bars,preserving and even increas-ing it. \Mien the magnets are inthe form of… … Fig. 650.
Physics
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