Magnetic Dipole Moment¶
A magnetic dipole is a theoretical way to describe of a sufficiently small magnet, e.g. an atom or an electron. The strength of a magnetic dipole is determined by the magnetic dipole moment. Historically, people used fictitious magnetic monopoles to model it, but this has a disadvantage of not being physically real since as of today no magnetic monopoles have been discovered. Modern physics uses the Ampèrian loop model which states that a magnetic dipole is a closed current loop enclosing a small flat area, and its magnetic dipole moment is the product of its area and current.
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