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 137
Fig. 97. Differential CoilsAND Plungers. intensity of the lights thrusting in the core the self-induction is increased and the current diminishes, lowering the lamps ; by withdrawing it the self-induc- … Fig. 98. Bisected Coils. tion diminishes, and the current increases. Thus the lamps can bemade to gradually vary in illuminating power like gas lights, whenturned up or down.Synonyms—Kicking Coil—Reaction Coil. Coils, Bisected. Resistance coils with connections at theircenters, as shown in the…
Electricity
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