Practical electricity, with questions and answers (1901)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 71
leoo B. H. Curve Curves showing the same relations graphically that the table gives numerically. This table was 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 that would… … Figure 26Coil of wire in air. 59 The number of lines flowing in the coil in Fig*. 26 maybe calenlated hy Formnla 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 fi.Ued with iron instead of air. The number of lines flowing may…
Electricity · Electric generators
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