Eddy current

Eddy current is a kind of electricity that can move around objects. Think of it like when you put a magnet near an object and the object moves away - that's the same type of electricity! Eddy current is made by creating a magnetic field, which is like an invisible force that can move things without us touching them. It can be used to make things move in different ways, like making a car move on a track or a train ride faster. Because this electricity is invisible, we need special machines and detectors to measure it so that it can be used safely.