Magnetic dipole–dipole interaction
= Magnetic dipole–dipole interaction
{wiki=Magnetic_dipole–dipole_interaction}
Magnetic dipole–dipole interaction is a fundamental phenomenon in electromagnetism that describes the interaction between two magnetic dipoles. A magnetic dipole is often represented by a small bar magnet or a loop of current, which generates a magnetic field. The dipole has both a magnitude (typically expressed as a magnetic moment) and a direction.