An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 252
ator in sucha position that they would connectwith the coil just as its wires werepassing the neutral line, as in figure £j 155. For it is evident that as the coil Fig. 155. — Diagram show-crosses this line its Current reverses *?g reversal of current at the neutral line. and its induced e.m.f.… … 222 ELECTRICITY AND MAGNETISM seen the distribution of magnetic flux in a two-pole machinewhen only the field coils are excited, and in diagram B thedistribution of magnetic flux when only the armature is carry-ing current and the brushes are in neutral position. It will
Electricity · Magnetism
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