A dictionary of electrical words, terms and phrases (1896)
Houston, Edwin J. (Edwin James), 1847-1914 · New York, The W.J. Johnston company · leaf 120
mparatively small cur-rent strength, L e., but of few a??iferes, is con,verted or transfon?ied into a current of compar-atively small electromotive force and large cur-rent strength. For advantages of this conversionsee Electricity, Distribution of, by AlternatingCurrents. Inverted induction coils… … Fig. 145. Medical Induction Coil. Coil, Induction, Microphone An induction coil, in which the variations in thecircuit of the primary are obtained by meansof microphone contacts. (See Microphone?) The carbon-button telephone transmitter is amicrophone in its action, its electric resistancevarying…
Electricity · Electrical engineering
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