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 918
amical Electricity. [905- an equally unexpected fact—that of the rotative action which a plate ofcopper in motion exercises on a magnet. This phenomenon may be shown by means of the apparatus representedin fig. 866. It consists of a copper disc, M, movable about a vertical axis.On this axis is a… … Fig. 866. a small pivot supporting a magnetic needle, ab. If the disc be now rotatedwith a slow and uniform velocity, the needle is deflected in the direction ofthe motion, and stops at an angle of from 20° to 30° with the direction of themagnetic meridian, according to the velocity of the rotation…
Physics
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