47 relations: Abampere, Ammeter, Ampacity, Ampère's force law, André-Marie Ampère, Approximation error, Centimetre–gram–second system of units, Circuit breaker, Classical electromagnetism, Clipping (morphology), Commonwealth of Nations, Coulomb, Dyne, Electric battery, Electric charge, Electric current, Electrical injury, Electrical resistance and conductance, Electromotive force, Electron, Elementary charge, General Conference on Weights and Measures, Hydraulic analogy, International Bureau of Weights and Measures, International Committee for Weights and Measures, International System of Units, Josephson effect, Joule, Kibble balance, Metre, MKS system of units, National Institute of Standards and Technology, Newton (unit), Ohm, Ohm's law, Orders of magnitude (current), PDF, Power (physics), Proposed redefinition of SI base units, Proton, Quantum Hall effect, Random House Webster's Unabridged Dictionary, SI base unit, Silver nitrate, Vacuum permeability, Volt, Watt.

## Abampere

The abampere (abA), also called the biot (Bi) after Jean-Baptiste Biot, is the basic electromagnetic unit of electric current in the emu-cgs system of units (electromagnetic cgs).

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## Ammeter

An ammeter (from Ampere Meter) is a measuring instrument used to measure the current in a circuit.

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## Ampacity

Ampacity is a portmanteau for ampere capacity defined by National Electrical Safety Codes, in some North American countries.

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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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## André-Marie Ampère

André-Marie Ampère (20 January 177510 June 1836) was a French physicist and mathematician who was one of the founders of the science of classical electromagnetism, which he referred to as "electrodynamics".

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## Approximation error

The approximation error in some data is the discrepancy between an exact value and some approximation to it.

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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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## Circuit breaker

A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit.

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## Classical electromagnetism

Classical electromagnetism or classical electrodynamics is a branch of theoretical physics that studies the interactions between electric charges and currents using an extension of the classical Newtonian model.

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## Clipping (morphology)

In linguistics, clipping is the word formation process which consists in the reduction of a word to one of its parts (Marchand: 1969).

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## Commonwealth of Nations

The Commonwealth of Nations, often known as simply the Commonwealth, is an intergovernmental organisation of 53 member states that are mostly former territories of the British Empire.

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## Coulomb

The coulomb (symbol: C) is the International System of Units (SI) unit of electric charge.

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## Dyne

The dyne (symbol dyn, from Greek δύναμις, dynamis, meaning power, force) is a derived unit of force specified in the centimetre–gram–second (CGS) system of units, a predecessor of the modern SI.

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## Electric battery

An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power electrical devices such as flashlights, smartphones, and electric cars.

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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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## Electric current

An electric current is a flow of electric charge.

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## Electrical injury

Electrical injury is a physiological reaction caused by electric current passing through the (human) body.

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## Electrical resistance and conductance

The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.

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## Electromotive force

Electromotive force, abbreviated emf (denoted \mathcal and measured in volts), is the electrical intensity or "pressure" developed by a source of electrical energy such as a battery or generator.

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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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## 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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## General Conference on Weights and Measures

The General Conference on Weights and Measures (Conférence générale des poids et mesures – CGPM) is the supreme authority of the International Bureau of Weights and Measures (Bureau international des poids et mesures – BIPM), the inter-governmental organization established in 1875 under the terms of the Metre Convention (Convention du Mètre) through which Member States act together on matters related to measurement science and measurement standards.

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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 Bureau of Weights and Measures

The International Bureau of Weights and Measures (Bureau international des poids et mesures) is an intergovernmental organization established by the Metre Convention, through which Member States act together on matters related to measurement science and measurement standards.

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## International Committee for Weights and Measures

The International Committee for Weights and Measures (abbreviated CIPM from the French Comité international des poids et mesures) consists of eighteen persons, each of a different nationality, from Member States of the Metre Convention (Convention du Mètre) appointed by the General Conference on Weights and Measures (CGPM) whose principal task is to promote worldwide uniformity in units of measurement by taking direct action or by submitting proposals to the CGPM.

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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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## Josephson effect

The Josephson effect is the phenomenon of supercurrent—i.e. a current that flows indefinitely long without any voltage applied—across a device known as a Josephson junction (JJ), which consists of two superconductors coupled by a weak link.

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## Joule

The joule (symbol: J) is a derived unit of energy in the International System of Units.

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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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## Metre

The metre (British spelling and BIPM spelling) or meter (American spelling) (from the French unit mètre, from the Greek noun μέτρον, "measure") is the base unit of length in some metric systems, including the International System of Units (SI).

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## MKS system of units

The MKS system of units is a physical system of units that expresses any given measurement using base units of the metre, kilogram, and/or second (MKS).

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## National Institute of Standards and Technology

The National Institute of Standards and Technology (NIST) is one of the oldest physical science laboratories in the United States.

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## Newton (unit)

The newton (symbol: N) is the International System of Units (SI) derived unit of force.

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## Ohm

The ohm (symbol: Ω) is the SI derived unit of electrical resistance, named after German physicist Georg Simon Ohm.

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## Ohm's law

Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

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## Orders of magnitude (current)

To help compare different orders of magnitude, the following list describes various ampere levels.

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The Portable Document Format (PDF) is a file format developed in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.

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## Power (physics)

In physics, power is the rate of doing work, the amount of energy transferred per unit time.

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## Proposed redefinition of SI base units

The International Committee for Weights and Measures (CIPM) has proposed revised definitions of the SI base units, for consideration at the 26th General Conference on Weights and Measures (CGPM).

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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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## Random House Webster's Unabridged Dictionary

Random House Webster's Unabridged Dictionary is a large American dictionary, first published in 1966 as The Random House Dictionary of the English Language: The Unabridged Edition.

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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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## Silver nitrate

Silver nitrate is an inorganic compound with chemical formula.

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## Vacuum permeability

The physical constant μ0, (pronounced "mu naught" or "mu zero"), commonly called the vacuum permeability, permeability of free space, permeability of vacuum, or magnetic constant, is an ideal, (baseline) physical constant, which is the value of magnetic permeability in a classical vacuum.

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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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## Watt

The watt (symbol: W) is a unit of power.

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## Redirects here:

Amp (unit), Ampage, Ampere (unit), Ampere unit, Amperes, Ampre, Attoampere, Centiampere, Decaampere, Exa-ampere, Exaampere, Exampere, Femtoamp, Femtoampere, Giga-ampere, Gigaampere, Gigampere, Hectoampere, International ampere, Kiloamp, Kiloampere, Mega-ampere, Megaamp, Megaampere, Megampere, Microamp, Microampere, Milliamp, Milliampere, Nanoamp, Nanoampere, Peta-ampere, Petaampere, Petampere, Picoamp, Picoampere, Tera-ampere, Terampere, Yoctoampere, Yotta-ampere, Yottaampere, Yottampere, Zeptoampere, Zetta-ampere, Zettaampere, Zettampere, ΜA, ㎀, ㎁, ㎂, ㎃, ㎄.

## References

[1] https://en.wikipedia.org/wiki/Ampere