# Magnetic moment

The magnetic moment in time of the magnet is typically a amount that determines the force how the magnet can exert on electric powered currents as well as the torque that the magnetic area will exert on it. A loop of electric powered current, a bar magnet, an electron, a molecule, as well as a entire world all have magnetic moments.

Both the magnetic moment in time and magnetic area may properly be deemed to acquire vectors getting a magnitude and direction. The path belonging in the direction of magnetic moment in time factors away from your south to north pole of the magnet. The magnetic area set up with a magnet is proportional to its magnetic moment in time as well. additional precisely, the phrase magnetic moment in time usually refers to some system’s magnetic dipole moment, which produces the very first phrase from the multipole expansion of the conventional magnetic field. The dipole element of an object’s magnetic area is symmetric concerning the path of its magnetic dipole moment, and decreases since the inverse cube belonging in the direction of range away from your object.

The options of magnetic moments in factors may properly be represented by poles in analogy to electrostatics. consider into account a bar magnet which has magnetic poles of identical magnitude but opposite polarity. every pole should certainly be the source of magnetic force which weakens with distance. offered that magnetic poles continually appear in pairs, their forces partially cancel every other on account of the actuality regardless of the actuality that one pole pulls, another repels.