weber

(Wb)
   the SI unit of magnetic flux. "Flux" is the rate (per unit of time) at which something crosses a surface perpendicular to the flow. If the something is a magnetic field, then the magnetic flux across a perpendicular surface is the product of the magnetic flux density, in teslas, and the surface area, in square meters. If a varying magnetic field passes perpendicularly through a circular loop of conducting material, the variation in the field induces a electric potential in the loop. If the flux is changing at a uniform rate of one weber per second, the induced potential is one volt.
   This means that numerically the flux in webers is equal to the potential, in volts, that would be created by collapsing the field uniformly to zero in one second. One weber is the flux induced in this way by a current varying at the uniform rate of one ampere per second. The weber is a large unit, equal to 108 maxwells, and practical fluxes are usually fractions of one weber. (Because of this, when we want to induce an electric potential in a conductor with a changing field, as we do in all electric generators, transformers and electric motors, we loop the conductor into hundreds of coils, thus adding together the small voltages induced in each loop by the changing field.) The unit honors the German physicist Wilhelm Eduard Weber (1804-1891), one of the early researchers of magnetism.

Dictionary of units of measurement. 2015.

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  • Weber — puede referirse a: el weber (Wb) una unidad para medir el flujo magnético. el Síndrome de Sturger Weber. la ley de Weber Fechner, que cuantifica el estímulo y la percepción. la marca de barbacoas weber. los siguientes científicos e investigadores …   Wikipedia Español

  • weber — [ vebɛr ] n. m. • 1880; du nom du physicien W. Weber ♦ Unité de mesure de flux d induction magnétique (symb.Wb) et de masse magnétique fictive. Une variation uniforme de flux de un weber en une seconde produit une force électromotrice de un volt …   Encyclopédie Universelle

  • WEBER (H. M.) — WEBER HEINRICH MARTIN (1842 1913) Universalité. C’est le mot qui caractérise peut être le mieux le mathématicien allemand Heinrich Weber. Esprit souple, il était capable de travailler dans des domaines très divers des mathématiques. Mais il… …   Encyclopédie Universelle

  • WEBER (M.) — Weber est de tous les sociologues modernes celui dont le rayonnement fut et reste le plus grand, tant par l’admiration que par la contestation qu’il suscite. Certaines de ses œuvres continuent à faire l’objet de vifs débats, comme à l’époque de… …   Encyclopédie Universelle

  • weber — WÉBER, wéberi, s.m. Unitate de măsură, în sistemul internaţional, pentru fluxul magnetic. – Din fr. weber. Trimis de cata, 27.02.2002. Sursa: DEX 98  wéber s. m., pl. wéberi; simb. Wb Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic … …   Dicționar Român

  • WEBER (E. H.) — WEBER ERNST HEINRICH (1795 1878) Anatomiste et physiologiste allemand, dont le nom reste attaché au problème du seuil différentiel, Weber fut professeur à l’Université de Leipzig, de 1818 jusqu’à sa mort. Il publia, en 1851, un ouvrage sur le… …   Encyclopédie Universelle

  • Weber — Weber: Weber   общепринятое сокращение (обозначение) имени ботаника, которое добавляется к научным (латинским) названиям некоторых таксонов ботанической (бинарной) номенклатуры и указывает на то, что автором этих наименований является… …   Википедия

  • Weber [3] — Weber, 1) Ernst Heinrich, Physiolog und Anatom, geb. 24. Juni 1795 in Wittenberg, gest. 26. Jan. 1878 in Leipzig, Sohn des Theologen Michael W. (geb. 6. Dez. 1754 in Gröben bei Weißenfels, 1784 Professor in Wittenberg, gest. 1. Aug. 1833 als… …   Meyers Großes Konversations-Lexikon

  • Weber [2] — Weber, 1) Veit, Schweizerdichter in der zweiten Hälfte des 15. Jahrh.; fünf Kriegslieder von ihm befinden sich in Schillings Beschreibung der burgundischen Kriege (Bern 1743, Fol.), einzeln herausgegeben von H. Schreiber, Freib. 1819. 2) Immanuel …   Pierer's Universal-Lexikon

  • Weber — (izg. véber) DEFINICIJA 1. Alfred (1868 1958), njemački ekonomist i sociolog, brat i suradnik Maxa (Kulturna povijest kao sociologija kulture, Tragično i povijest, Kriza moderne državne misli u Europi) 2. Carl Maria von (1786 1826), njemački… …   Hrvatski jezični portal

  • Weber — We ber, n. [From the name of Professor Weber, a German electrician.] (Elec.) The standard unit of electrical quantity, and also of current. See {Coulomb}, and {Amp?re}. [Obs.] [1913 Webster] …   The Collaborative International Dictionary of English

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