Field strength

In physics, the field strength of a field is the magnitude of its vector value.In theoretical physics, the field strength is another name for the curvature form. For the electromagnetic field, the curvature form is an antisymmetric matrix whose elements are the electric field and magnetic field: the electromagnetic tensor.
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Noun
1. the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field
(synonym) field intensity
(hypernym) intensity, strength, intensity level
(hyponym) magnetic field strength, magnetic intensity, magnetic induction, magnetic flux density

The magnitude of an electric, magnetic, or electromagnetic field at a given point. (188 ) Note: The field strength of an electromagnetic wave is usually expressed as the rms value of the electric field, in volts per meter. The field strength of a magnetic field is usually expressed in ampere-turns per meter or in oersteds. Synonym radio field intensity.