The standard electrical dictionary : a popular encyclopaedia of words and terms used in the practice of electrical engineering (1898)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · London : Crosby Lockwood and Son · leaf 221
in the cut. The shapes of electro-magnets vary greatly. The cuts show severalforms of electro-magnets. A more usual form is the horseshoeor double limb magnet, consisting generally of two straight cores,wound with wire and connected and held parallel to each other bya bar across one end, which bar… … Fig-. 145. Diagram of an Electro-magnet Showing Relation of CurrentAND Winding to its Polarity and Lines of Force. cited. If both poles are north or both are south poles, then themagnet cannot be termed a horseshoe magnet, but is merely an anomalous magnet. In the field mag-nets of dynamos the most…
Electricity
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