What kind of current is referred to as an eddy current?

Eddy currents are induced currents that occur in conductors when they are exposed to changing magnetic fields. This phenomenon arises due to the principles of electromagnetic induction, where a varying magnetic field induces an electric current in a conductor. These currents are circulating loops of electricity that can generate heat and loss of energy when they occur in conductive materials.

The characteristics of eddy currents are directly linked to the second choice, which describes them as resulting from magnetic induction. When a conductor moves through a magnetic field or when the magnetic field around a conductor changes, eddy currents can be generated within that conductor due to the induced electromotive force (EMF). This concept is vital in various applications, such as induction heating, magnetic braking, and transformers, where controlling eddy currents can enhance efficiency and performance.