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A Tesla coil is an electrical resonant transformer circuit designed by inventor Nikola Tesla in 1891. [1] It is used to produce high-voltage, low-current, high-frequency alternating-current electricity. [2] [3] Tesla experimented with a number of different configurations consisting of two, or sometimes three, coupled resonant electric circuits.
These long arcs were not a feature of the normal operation of the coil because they wasted energy; for these photos Tesla forced the machine to produce arcs by switching the power rapidly on and off. The photo was part of a publicity spread taken by photographer Dickinson Alley in December 1899 to accompany his magazine article Nikola Tesla ...
[11] [12] [13] In 1897 he patented a device [14] called the high-voltage, resonant transformer or "Tesla coil." Transferring electrical energy from the primary coil to the secondary coil by resonant induction, a Tesla coil is capable of producing very high voltages at high frequency. The improved design allowed for the safe production and ...
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With the success of Tesla's A.C. system, it soon became the preferred method of generating electricity worldwide. Tesla worked on a number of other inventions, including a transformer that would change a low voltage to a high voltage by means of safe A.C. electric current. This transformer came to be known as the Tesla coil.
It is interesting to note that rigorous mathematical descriptions of Tesla's Magnifier did not become available until 50-100 years after Tesla's pioneering work. Modern analyses have succeeded in applying distributed "transmission line" descriptions of the "extra coil" rather than the usual lumped-constant analysis.
Tesla coils were also used as dramatic props in early mystery and science fiction motion pictures, starting in the silent era. [32] The crackling, writhing sparks emanating from the electrode of a giant Tesla coil became Hollywood's iconic symbol of the "mad scientist's" lab, recognized throughout the world. [138]
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