Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 485
ine. In every suchmachine there mav alwavs be distinguished: 1=. the indue.or magnets by which the held is produced: -~. the armature.or conducting system, in which an electromotive force rs in-duced bv a change in- the field: 3*. the collectors, or I rushes.Machines are called maon.ttos when the… … F~g 103 Fig 104 rings, and arranged so as to revolve be:T.~veen poles of a mag-net i Fig. 303 . Resting on each ring is a metallic spring orbrush, which serves to connect the external circuit with thearmature. If the top wire of the loop be considered as mov- DRUM ARMATURE. 475
Physics
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