St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 85
82 HOW THE INDUCTION COIL WORKS. the circuit being closed, the operation is rapidlyrepeated. A condenser is usually connedled to commercial forms.It is placed under the wood-work and decreases sparkingat the interrupter. (See Apparatus Book, ChapterXI., for home-made indudtion coils.) Fig. 104… … Fig. 104. the other. The interrupter and a switch are shown atthe left. Fig. 105 shows a small coil for medical purposes. Adry cell is placed under the coil and all is included ina neat box. The handles form the terminals of thesecondary coil. 105. The Currents. It .should be noted that thecurrent…
Electricity
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