The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 191
Fig. 130. Direction of Lines of Force of a Permanent Magnet. … Fig. 131. Direction of Lines of Force of an Electro-magnet.Their general course is shown in the cuts diagrammatically. The STANDARD ELECTRICAL DICTIONARY. 187 circles indicate a compass used in tracing their course. The mag-netic needle tends to place itself in the direction of or tangentialto the…
Electricity
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