Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 587
nd towards the brush m. Atthe same time thpse coils moving upward in front of thepole-piece S also have currents urged towards the brush m.Thus the armature is virtually divided into two equal parts,each half having currents flowing to the brush m. Thebrushes must therefore be placed on opposite… … Fig. 455. difference is a maximum and from the coils that are in thefield of least action, 631. Classes of dynamufsh —Dynamos may be divided intodifferent classes according to the method by which theirfield magnets are excited. Fig. 456 illustrates a magneto-electric machine, where the field magnet…
Physics
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