What is meant by eddy currents

Eddy currents are swirling currents of electric charge that are induced in a conductor when it is exposed to a changing magnetic field. These currents flow in a circular or elliptical path, creating a magnetic field that opposes the original change in magnetic field. Eddy currents result in the generation of heat and can cause energy losses in electrical equipment such as transformers, motors, and generators. They can also be utilized in applications such as electromagnetic braking and induction heating.