Magnetic Dipole

All magnets exists as dipoles, there are no discovered monopoles. There are two main models for understanding the Moment of these dipoles.

Moment §

The magnetic dipole Moment is given by:

Formula §

Magnetic Dipole Moment

Terms §

• ${\mu }_B\text{ or }\vec{m}$ = Magnetic dipole moment (in ${\text{Am}}^2$)
• $I$ = Current (in $\text{A}$)
• $\vec{A}$ = Area Vector (in ${\text{m}}^2$)

The direction of the magnetic moment, $\mu$ is given by the Right Curl Rule

Hypothetical Monopoles - Gilbert model §

In the Gilbert model, hypothetical monopoles are position in the same configuration that an Electric Dipole would be, i.e. one monopole is north pole, while another one is south pole.

#todo

Coil of Wire - Ampèrian Loop Model §

Since a loop of wire produces a Magnetic Field, a magnetic dipole can be modelled as a loop of wire. The orientation of the poles depends on the direction of current flowing through the loop, but there always exists a north and south magnetic pole