A dictionary of electrical words, terms and phrases (1898)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W. J. Johnston company · leaf 186
Fig. 218. Action of Solenoid^Poles. … Fig. 2iq. Amperes Stand. are flowing in opposite directions, as may beseen from an inspection of the drawing. Dissimilar solenoid poles, on the contrary, at-tract each other as at A, B, in Fig. 218, since
Electricity · Electrical engineering
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