Magnetic Moment - Magnetic Dipoles

Magnetic Dipoles

Main article: Magnetic dipole See also: Dipole

A magnetic dipole is the limit of either a current loop or a pair of poles as the dimensions of the source are reduced to zero while keeping the moment constant. As long as these limits only applies to fields far from the sources, they are equivalent. However, the two models give different predictions for the internal field (see below).

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Famous quotes containing the word magnetic:

    “We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.”
    —Henry David Thoreau (1817–1862)