Joule effect:

Under the influence of external magnetic field, the magnetostrictive material undergoes deformation in axial direction. This effect is known as Joule effect. It has application in actuators.

Villari effect

A magnetostrictive material undergoes change in magnetization under the influence of applied uniaxial stress. This effect pertains to the transduction of energy from the elastic to the magnetic state. Villari effect is used in non destructive evaluation and sensing.

Wiedmann effect

When a current carrying ferromagnetic wire is subjected to axial magnetic field, some of the moments align in a helical fashion creating a twist in the wire. This effect is known as Wiedmann effect.

Matteuci effect

A change in axial magnetization of a current carrying wire when it is twisted is called Matteuci effect.