Tesla coil facts for kids
A Tesla coil is an electrical machine invented by Nikola Tesla in 1891. It is a radio-frequency oscillator and resonant transformer that generates high voltage electricity at low currents. One use is to make lightning bolts. Most are used nowadays to entertain. "Singing Tesla coils" have also been made that can create music.
It works on the principle of electromagnetic induction
Images for kids
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Homemade Tesla coil in operation, showing brush discharges from the toroid. The high electric field causes the air around the high voltage terminal to ionize and conduct electricity, allowing electricity to leak into the air in colorful corona discharges, brush discharges and streamer arcs. Tesla coils are used for entertainment at science museums and public events, and for special effects in movies and television
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Solid state DRSSTC Tesla coil with pointed wire attached to toroid to produce brush discharge
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Insides of a modern solid-state Tesla coil, featuring single-board construction
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Tesla coil in terrarium (I)
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Electrum sculpture, the world's largest Tesla coil. Builder Eric Orr is visible sitting inside the hollow spherical high voltage electrode
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