The inventions : researches and writing of Nikola Tesla, with special reference to his work in polyphase currents and high potential lighting (1894)
Martin, Thomas Commerford, 1856-1924, Tesla, Nikola, 1856-1943 · New York : The Electrical Engineer · leaf 204
ction electro-magnetic, the tube could not be lighted when the observersbody is interposed between it and the coil, or at least its lumi-nosity should be considerably diminished. When the tube isheld exactly over the centre of the coil—the latter being woundin sections and the primary placed… … Fig. 124. middle both halves of the coil neutralize each other, and theehictric potential is zero. If the action were electromagnetic,the tube should light best in the plane through the centre of thecoil, sijice the electrctuiHgnetic effect there should bea niiixiiuum.When an arc is established…
Electric currents, Alternating · Electrical engineering
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