Practical electricity .. with questions and answers (1911)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 69
40000 Coooc 1600 B. H. Cnrve Curves showing the same relations graphically that thetable gives numerically. This table vras calculated by measuring the number ofmagnetic lines flowing through an iron ring surroundedby a certain number of turns of wire (see Fig. 27) andcomparing this with the number… … Figure 26Coil of wire in air. 59 The number of lines flo-\ving in the coil in Fig. 26 may-be ealcnlated by Formula 4, or measured by coil and gal-anometer as in Fig. 27. Fig. 27 shows the same coil as in Fig. 26, except thatthe coil is fiJled with iron instead of air. The number of lines flowing…
Electricity
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