Magnetic Field Intensity

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Magnetic Field Intensity

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The magnetic force exerted on an imaginary unit magnetic pole placed at any specified point of space. It is a vector quantity. Its direction is taken as the direction toward which a north magnetic pole would tend to move under the influence of the field. If the force is measured in dynes and the unit pole is a cgs unit pole, the field intensity is given in oersteds. Also called magnetic intensity, magnetic field, magnetic field strength. </dd>
Prior to 1932 the oersted was called the gauss; but the latter term is now used to measure magnetic induction (within magnetic materials), whereas oersted is reserved for magnetic force. By definition, one magnetic line of force per square centimeter (in air) represents the field intensity of 1 oersted. </dd>

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use