Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 155
number of segments,laid the foundation of modern electrical engineering. The word dynamo is now used in a broader sense to signify all machinesfor generating electromotive force by electromagnetic induction, whetherthese machines be self-exciting or not. It is usually confined, however,… … Fig. 123 manent magnetism, and thereby induce a small electromotive force. If thecircuit is closed as in Fig. 123 this produces a small current, which, passinground the field coils, strengthens the remanent magnetism. The electro-motive force is thereby increased, and with it the current, and so…
Electrical engineering
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