Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 318
tance is very low. With dynamos to get more voltage place extra ma-chines in series. You will then get more current also. To get more current at same voltage place extra ma-chines in parallel with the first one. THE INDUCTION COIL. Induced electric currents have in general very highelectro-motive… … Fig. 148. termed the induction coil or inductorium (see Figure148), is used. The induction coil consists of a cylindricalbobbin having a central iron core surrounded by a shortinner or primary coil of stout wire, and by an outersecondary coil made up of many thousand turns ofvery fine wire, which…
Electricity
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