The inventions, researches and writings of Nikola Tesla : with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas C, Tesla, Nikola · The Electrical Engineer · leaf 88
; but after each current impulse ceases or begins to fall , the magnetism in the armature and in the ends of the pole - pieces c o ' lags or continues to manifest itself , which produces a rotation of the armature by the repellent force between the more closely approximating points of maximum… … Fro . 54 . Ftg . 55 . closed induced coils to intensify this effect . Although in the illustrations but one of the fields is shown , each element of the motor really constitutes a field , wound with the closed coils , the currents being induced mainly in those convolutions or coils which are…
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