What is Tesla Coil ?

Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link.

the primary and secondary circuits both being tuned so they resonate at the same frequency

These techniques can transport energy longer distances but must be aimed at the receiver.

typically, between 25 kHz and 2 MHz). The later and higher-power coil design has a single-layer primary and secondary. These Tesla coils are often used by hobbyists and at venues such as science museums to produce long sparks.

Tesla coil circuits were used commercially in sparkgap radio transmitters for wireless telegraphy until the 1920s,

in electrotherapy and pseudomedical devices such as violet ray.

Burns: Due to the high frequencies involved,

Today their main use is entertainment and educational displays.

Tesla coils can cause severe burns without the sensation of pain. .

Tesla coils are built by many high-voltage enthusiasts, research institutions,

Long Distance Arcing: Tesla coils,

, science museums and independent experimenters. Although electronic circuit controllers have been developed,

, by their nature, produce electrical arcing which can travel unpredictably in any direction

Tesla's original spark gap design is less expensive and has proven extremely reliable

can strike at considerable distances.

involving “turns” of insulated wire wrapped in two or more overlapping coils.

These arcs can be very dangerous.

In a tesla coil, typically there is a very high amperage but low voltage coil as the energy source, which produces a large magnetic field.

Wireless Power with a DIY Tesla Coil. Want to light up a bulb with no wires, or charge a cell phone without plugging it in.

Immersed in this magnetic field is a low amperage coil with extremely small diameter wire

It's easy when you make your own Tesla Coil. .

These tiny coils each absorb a fraction of the magnetic field and turn it into an equally tiny voltage, perhaps 1–2 volts per “turn”.

If you have a newer-model smartphone it probably comes with built-in wireless charging

But because there are many hundreds to thousands of turns of the small wires,

Because the coil makes very high voltages,