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Core-less induction coils in telephone service (1907)

Smith, Claude E, Stewart, Walter M · leaf 30

An illustration from Core-less induction coils in telephone service, 1907, leaf 30
, wemight have had more satisfactory results. The inductive effect produced inthe secondarys of these core-less coils, was Electro-magnectic. As the current in the primaryfluctuates, the field of force about the primary becomes more in- ■tense, and will expand while the current strength is… … 7. ductor, an olectro motive force is sot up in the conductor, whichtends to cause a current to flow. The direction or the electro-motive force will depend upon the direction of the lines, and themovement of the conductor, and its value will depend on the rateof cutting. It se.iins that the most…

Induction coils · Telephone · Telephone systems · Theses

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