Thomälen, Adolf, 1865-, Thomälen Adolf. Kurzes Lehrbuch der Electrotechnik. English · London, E. Arnold · leaf 165
where the armature passes under the pole they oppose the main flux, whileat the point where the armature leaves the pole they act in the same direc-tion as the main flux. The cross ampere-turns do not therefore directlyeither strengthen or weaken the armature flux, but merely distort it, asshown in…
Electrical engineering
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