The Tesla Coil was invented in 1891 by Nikola Tesla. It was designed to produce high-voltage, low-current, high frequency alternating-current electricity. Tesla used it for various experiments, including wireless transmission of electrical energy.
A Tesla coil uses a primary coil and a secondary coil with capacitors to create a resonant
transformer circuit. When electricity flows into the primary coil, it creates a magnetic field
that induces a much higher voltage in the secondary coil.