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Encyclopedia > Weber (unit)

In physics, the weber (symbol: Wb) is the SI unit of magnetic flux. It is named after the German physicist Wilhelm Eduard Weber (1804 - 1891). Since antiquity, people have tried to understand the behavior of matter: why unsupported objects drop to the ground, why different materials have different properties, and so forth. ... The International System of Units (abbreviated SI from the French language name Système International dUnités) is the most widely used system of units. ... The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. ... Magnetic flux, is a measure of quantity of magnetism, taking account of the strength and the extent of a magnetic field. ... Wilhelm Eduard Weber Butt Face Idiot Head (October 24, 1804 - June 23, 1891) was a noted physicist. ... 1804 was a leap year starting on Sunday (see link for calendar). ... 1891 was a common year starting on Thursday (see link for calendar). ...

The weber may be defined in terms of Faraday's law, which relates a changing magnetic flux through a loop to the electric field around the loop. A change in flux of one weber per second will induce an emf of one volt. Faradays law can mean: Faradays law of induction (electromagnetic fields) Faradays law of electrolysis This is a disambiguation page — a navigational aid which lists pages that might otherwise share the same title. ... In physics, an electric field or E-field is an effect produced by an electric charge that exerts a force on charged objects in its vicinity. ... The second (symbol: s) is the SI base unit of time. ... Electromagnetism is the physics of the electromagnetic field: a field, encompassing all of space, composed of the electric field and the magnetic field. ... The volt (symbol: V) is the SI derived unit of electric potential difference. ...

In SI base units, the dimensions of the weber are kg·m2·s-2·A-1. In derived units, they are volt-seconds (V·s). The SI system of units defines seven SI base units: fundamental physical units defined by an operational definition. ...

The weber is a large unit, equal to 1 T m2 = 108 maxwells. The tesla (symbol T) is the SI derived unit of magnetic flux density (or magnetic induction). ... The compound derived CGS unit, the maxwell, abbreviated as Mx, is the unit for the magnetic flux. ...

  Results from FactBites:
weber, unit of magnetic flux. The Columbia Encyclopedia, Sixth Edition. 2001-05 (107 words)
Wb, unit of magnetic flux in the mks system of weights and measures; 1 Wb is equal to 1 volt-second.
The weber per square meter, recently named the tesla (abbr.
T), is the unit of magnetic flux density, which is a measure of the strength of a magnetic field in a given region.
Electrical Units - MSN Encarta (448 words)
Electrical Units, units used to express quantitative measurements of all types of electrostatic and electromagnetic phenomena, of the characteristics of electrical components and circuits, and in the metering of electricity supply.
Historically, the ampere and the ohm were the two independent electrical units, defined in terms of the metre, kilogram, and second, which established SI electrical measurements.
The determination of electrical units in terms of SI units is very costly and laborious, and is only undertaken at intervals of several years by national standards laboratories.
  More results at FactBites »



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