Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 172
int of maximum intensity. The varying magneticintensity of the iron core of each moving coil increasesthis effect as explained in § 463. Of course, the numberof coils on the armature may be more or less than twelve,or the armature may be of a form almost wholly differentfrom that just described,… … Fig. 243. 465. Dynamo-Electric Machines. — In the Brush dynamo-electric machine, represented in Fig. 243, ashaft runs through the machine from end to end, carryinga pulley, P, at one end, a commutator, c, at the other,and a wheel armature, R, at the middle. The armature,R, carries eight or more…
Electricity · Magnetism
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