39 relations: AA battery, Abcoulomb, Absolute value, Alkaline battery, Ampère's circuital law, Ampère's force law, Ampere, Ampere hour, Atomic units, Avogadro constant, Caesium, Capacitor, Centimetre–gram–second system of units, Charles-Augustin de Coulomb, Conventional electrical unit, Coulomb's law, DESY, Electric charge, Electron, Electrostatics, Elementary charge, Farad, Faraday constant, Hydraulic analogy, International System of Units, Kibble balance, Kilogram, Lightning, Magnetic flux quantum, Mole (unit), Multiplicative inverse, Proton, Quantum Hall effect, Second, SI base unit, SI derived unit, Statcoulomb, Static electricity, Volt.

## AA battery

The AA battery—also called a double A or Mignon (French for "dainty") battery—is a standard size single cell cylindrical dry battery.

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## Abcoulomb

The abcoulomb (abC or aC) or electromagnetic unit of charge (emu of charge) is the basic physical unit of electric charge in the cgs-emu system of units.

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## Absolute value

In mathematics, the absolute value or modulus of a real number is the non-negative value of without regard to its sign.

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## Alkaline battery

No description.

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## Ampère's circuital law

In classical electromagnetism, Ampère's circuital law (not to be confused with Ampère's force law that André-Marie Ampère discovered in 1823) relates the integrated magnetic field around a closed loop to the electric current passing through the loop.

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## Ampère's force law

In magnetostatics, the force of attraction or repulsion between two current-carrying wires (see first figure below) is often called Ampère's force law.

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## Ampere

The ampere (symbol: A), often shortened to "amp",SI supports only the use of symbols and deprecates the use of abbreviations for units.

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## Ampere hour

An ampere hour or amp hour (symbol Ah; also denoted A⋅h or A h) is a unit of electric charge, having dimensions of electric current multiplied by time, equal to the charge transferred by a steady current of one ampere flowing for one hour, or 3600 coulombs.

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## Atomic units

Atomic units (au or a.u.) form a system of natural units which is especially convenient for atomic physics calculations.

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## Avogadro constant

In chemistry and physics, the Avogadro constant (named after scientist Amedeo Avogadro) is the number of constituent particles, usually atoms or molecules, that are contained in the amount of substance given by one mole.

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## Caesium

Caesium (British spelling and IUPAC spelling) or cesium (American spelling) is a chemical element with symbol Cs and atomic number 55.

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## Capacitor

A capacitor is a passive two-terminal electrical component that stores potential energy in an electric field.

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## Centimetre–gram–second system of units

The centimetre–gram–second system of units (abbreviated CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time.

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## Charles-Augustin de Coulomb

Charles-Augustin de Coulomb (14 June 1736 – 23 August 1806) was a French military engineer and physicist.

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## Conventional electrical unit

A conventional electrical unit (or conventional unit where there is no risk of ambiguity) is a unit of measurement in the field of electricity which is based on the so-called "conventional values" of the Josephson constant and the von Klitzing constant agreed by the International Committee for Weights and Measures (CIPM) in 1988.

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## Coulomb's law

Coulomb's law, or Coulomb's inverse-square law, is a law of physics for quantifying the amount of force with which stationary electrically charged particles repel or attract each other.

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## DESY

The Deutsches Elektronen-Synchrotron (English German Electron Synchrotron) commonly referred to by the abbreviation DESY, is a national research center in Germany that operates particle accelerators used to investigate the structure of matter.

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## Electric charge

Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field.

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## Electron

The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.

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## Electrostatics

Electrostatics is a branch of physics that studies electric charges at rest.

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## Elementary charge

The elementary charge, usually denoted as or sometimes, is the electric charge carried by a single proton, or equivalently, the magnitude of the electric charge carried by a single electron, which has charge.

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## Farad

The farad (symbol: F) is the SI derived unit of electrical capacitance, the ability of a body to store an electrical charge.

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## Faraday constant

The Faraday constant, denoted by the symbol and sometimes stylized as ℱ, is named after Michael Faraday.

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## Hydraulic analogy

The electronic–hydraulic analogy (derisively referred to as the drain-pipe theory by Oliver Lodge) is the most widely used analogy for "electron fluid" in a metal conductor.

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## International System of Units

The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement.

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## Kibble balance

A Kibble balance (previously watt balance) is an electromechanical weight measuring instrument that measures the weight of a test object very precisely by the strength of an electric current and a voltage.

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## Kilogram

The kilogram or kilogramme (symbol: kg) is the base unit of mass in the International System of Units (SI), and is defined as being equal to the mass of the International Prototype of the Kilogram (IPK, also known as "Le Grand K" or "Big K"), a cylinder of platinum-iridium alloy stored by the International Bureau of Weights and Measures at Saint-Cloud, France.

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## Lightning

Lightning is a sudden electrostatic discharge that occurs typically during a thunderstorm.

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## Magnetic flux quantum

The magnetic flux, represented by the symbol, threading some contour or loop is defined as the magnetic field multiplied by the loop area, i.e..

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## Mole (unit)

The mole, symbol mol, is the SI unit of amount of substance.

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## Multiplicative inverse

In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1.

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## Proton

| magnetic_moment.

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## Quantum Hall effect

The quantum Hall effect (or integer quantum Hall effect) is a quantum-mechanical version of the Hall effect, observed in two-dimensional electron systems subjected to low temperatures and strong magnetic fields, in which the Hall conductance undergoes quantum Hall transitions to take on the quantized values where is the channel current, is the Hall voltage, is the elementary charge and is Planck's constant.

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## Second

The second is the SI base unit of time, commonly understood and historically defined as 1/86,400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each.

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## SI base unit

The International System of Units (SI) defines seven units of measure as a basic set from which all other SI units can be derived.

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## SI derived unit

SI derived units are units of measurement derived from the seven base units specified by the International System of Units (SI).

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## Statcoulomb

The statcoulomb (statC) or franklin (Fr) or electrostatic unit of charge (esu) is the physical unit for electrical charge used in the esu-cgs (centimetre–gram–second system of units) and Gaussian units.

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## Static electricity

Static electricity is an imbalance of electric charges within or on the surface of a material.

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## Volt

The volt (symbol: V) is the derived unit for electric potential, electric potential difference (voltage), and electromotive force.

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## Redirects here:

Ampere-second, Attocoulomb, Coloumb, Columb, Coulomb (unit), Coulomb unit, Exacoulomb, Femtocoulomb, Gigacoulomb, Kilocoulomb, Megacoulomb, Microcoulomb, Millicoulomb, Nanocoulomb, Petacoulomb, Picocoulomb, Picocoulombs, Q=it, Teracoulomb, Yoctocoulomb, Yottacoulomb, Zeptocoulomb, Zettacoulomb.