Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 182
This results in theinduced e.m.f. in the coil always tending to send a currentthrough the external circuit in the same direction. The properarrangement of the loop, segments, and the brushes is shownin Fig. 130. Such a machine is called a simple direct-currentdynamo, because it delivers a direct… … Fig. 131 armature winding, or vice versa, so that the induced e.m.f.in the winding will send a direct current through the externalcircuit. A curve representing the value of the e.m.f. impressedupon the external circuit when the two-part commutator isused is shown in Fig. 131. An e.m.f. such as that…
Electrical engineering
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