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 39
roduced by the reversals of polar ity of the magnet , but as the speed of the armature increases , the vibrations become less and less frequent and finally entirely cease . Then the iron is weakly but permanently attracted , showing that synchronism is reached and the field magnet energized by in… … Fig . 13 . speed is reached , or very nearly so , it ceases to rotate and is per manently attracted . A crude but illustrative experiment is made with an incandes cent lamp . Placing the lamp in circuit with the continuous cur rent generator and in series with the magnet coil , rapid fluctua tions…
e-rara · Eisenbibliothek Schlatt · No known copyright restrictions. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-97-17.webp)
