What forms when a coil moves relative to a magnetic field?

When a coil moves relative to a magnetic field, it undergoes a change in magnetic flux, which leads to the phenomenon of electromagnetic induction. This principle, articulated by Faraday's Law of Induction, states that a change in the magnetic field through a coil induces an electromotive force (emf) in that coil. The induced emf can cause an electric current to flow if the coil is part of a closed circuit.

Induced current is the result of the interaction between the moving coil and the magnetic field, and it occurs as a response to the induced voltage generated from the changing magnetic flux. This process is fundamental in applications like electric generators, where mechanical energy is converted into electrical energy through motion in a magnetic field.

In contrast, while eddy currents are also generated by changing magnetic fields, they refer to loops of electrical current induced within conductors due to a changing magnetic field in the conductor, rather than the induced current in the coil itself. Thus, the phenomenon most accurately described by the movement of a coil in a magnetic field is the formation of induced current.