electromagnetic unit

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electromagnetic unit

n. Abbr. EMU
Any of various units used in the centimeter-gram-second system of units to describe electric and magnetic field strengths, electric current strengths, and other quantities associated with electromagnetism.

electromagnetic unit

n
(Units) any unit that belongs to a system of electrical cgs units in which the magnetic constant is given the value of unity and is taken as a pure number. Abbreviation: EMU or e.m.u. Compare electrostatic unit

elec′tromagnet′ic u′nit

n.
a unit, as an abampere, in the system of units derived from the magnetic effects of an electric current. Abbr.: EMU, emu
[1910–15]
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 electromagnetic unit - any of various systems of units for measuring electricity and magnetismemuunit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"capacitance unit - a measure of the capacity of a circuit component to store chargecharge unit, quantity unit - a measure of the quantity of electricity (determined by the amount of an electric current and the time for which it flows)conductance unit - a measure of a material's ability to conduct an electrical chargecurrent unit - a measure of the amount of electric charge flowing past a circuit point at a specific timeelastance unit - the reciprocal of capacitancefield strength unit - an electromagnetic unit of magnetic intensityflux density unit - a measure of the amount of flux per unit of cross sectional areainductance unit - a measure of the property of an electric circuit by which an electromotive force is induced in itlight unit - a measure of the visible electromagnetic radiationmagnetomotive force unit - a unit of measurement of magnetomotive forcepotential unit - a measure of the potential energy of a unit charge at a given point in a circuit relative to a reference point (ground)power unit - a measure of electric powerradioactivity unit - a measure of radioactivityresistance unit - the reciprocal of conductance
References in periodicals archive ?
His topics include vector analysis and Maxwell's equations, electromagnetic units and electric charges, methods of determining electric field and potential, the classical and quantum theories of lights, the classical and quantum theory of light-matter interaction, optical spectra of materials, the optics of eyes, electron microscopy in scanning and transmission modes, and fluorescence diffuse optical tomography.
If one begins, in the area of electric phenomena, by considering the definition of magnetic poles as centers of forces which they exert upon each other, one can define by similar reasoning successively the electromagnetic units of the strength of the current, the galvanic resistance, and the capacitance--in short, one can measure all quantities in units that are connected to the fundamental units by strict reasoning.
Maxwell's electromagnetic theory entailed a new prediction: the equality of the light speed in vacuum with the ratio of the electrostatic to the electromagnetic units. Both quantities were independently measurable at the time, but the figures available in 1862 showed a disagreement of at least 1 percent.

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