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What Is Tesla's Induction Coil

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Tesla originally experimented with induction coils, similar to those found in ignition coils in internal combustion engines. He decided to power this setup with a high speed alternator he was developing. However, the high frequency melted the iron core and the insulation between the primary and secondary windings of the coil. To solve the problem, Tesla removed the insulation and replaced it with an air gap. He also designed the setup so that the iron core could be moved. Additionally, he discovered that he needed to place the capacitor between the alternator and primary windings to avoid burning out the coil. Adjusting the coil and capacitor allowed Tesla to use resonance to attain higher frequencies. He later relocated to Colorado after…show more content…
Instead, his idea was to utilize a large central Tesla coil to send electricity across the globe. Anyone who needed to use it would only need a receiving coil to convert it into a useful form. Tesla was aware of the range limitations of the coils, and his idea of countering that was to simply make giant coils. Tesla attempted construction of Wardenclyffe Tower, a coil standing 168 feet tall. The tower, if completed, would have been the largest Tesla Coil in history to have been constructed. Little is known of the project, as they kept the public and media away from it. However, Tesla was unable to complete the tower, as his funding was cut off by his supporter, J.P. Morgan, who ultimately deemed the project impractical. He scrapped the tower in an attempt to pay off his debts. Despite the failure of his great dream, Tesla's work would live to be used in radio transmission. The exact circuit used in a Tesla coil can be found in virtually every radio. His work resulted in the U.S. Supreme Court overturning Guglielmo Marconi's patent on radio, as Telsa's work predated Marconi's. An example of a large coil that survives today can be found at Griffith Observatory in Los Angeles, California. It is capable of amplifying its input current by over 2,000 times, turning 248 volts into around 500,000. While not built by him, this coil is an indirect monument to a colossal dream by a man way ahead of his time that ultimately proved to be his own
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