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...magnetic field|magnetic]] fields are created by [[electric charge]]s and [[electric current]]s and in addition they give relationships between these fields. The equati ...'', ''t'') be an electric charge density and '''J'''('''r''', ''t'') be an electric current density, both quantities enter the second set of Maxwell equations (again i

...of a [[magnetic field]] |'''H'''|. The oersted is defined by means of an electric current giving the field '''H'''.

...-field [[Electromagnet|electromagnets]] and wires which carry very large [[Electric current|currents]], seen in their role as an essential part of the [[Large Hadron C

Consider two wires, one carrying an electric current ''i''₁, the other ''i''₂. Both currents are constant ...ial definition is found at the [[BIPM]] website: {{cite web |title=Unit of electric current (ampere) |url=http://www.bipm.org/en/si/si_brochure/chapter2/2-1/ampere.htm

...n]], which gives the force between two current carrying wires. The unit of electric current [[Ampere (unit)|ampere]] is named after him. ...rk that made him famous. Arago related how Oersted had found that a steady electric current influences the orientation of a compass needle. After a week Ampère had d

where ''i'' is the electric current flowing through the closed path. In the path at hand ''i'' = 0.

...h CGPM adopted the ampere, the kelvin and the candela as base units, for [[electric current]], thermodynamic [[temperature]] and [[luminous intensity]] respectively.

|[[Electric current|current]]

...iode, acting as a photodetector, converting incident light to a detectable electric current. ...by incident light, thus converting a portion of the incident light into an electric current.

'''Electronic switches''' are devices that can stop or start an electric current as a result of the absence (or presence) of a ''control'' signal. Their in

...sup>-19</sup> C.<ref name=nist/>}} Moving electric charges constitute an [[electric current]], and electric charges and currents are the sources of the [[Maxwell equat ...etween them are much more complex. Moving electric charges constitute an [[electric current]], generating [[magnetic field]]s and magnetic forces. See the article [[Li

A '''current mirror''' is an electric circuit designed to control a [[electric current|current]] through one [[active device]] by copying the current in another a

...equal than 1 [[Dalton|kD]]. The large diameter allows not only the flow of electric current, largely carried by [[potassium]] ions, but also exchange of small [[metabo

...m of Units#Base units|SI base unit]]s for length, mass, time, temperature, electric current, luminous intensity and amount of substance. The second of these are the [

| electric current density || A·m^&minus;2

...the first to actually demonstrate it. </ref> He also decided that if an [[electric current]] in a wire could move a magnet, then if the magnet were held fixed, and th ...moving magnet, or a wire moving through a magnetic field) can 'induce' an electric current in a wire (''see the section [[#Electromagnetic induction|below]] on electr

...he west coast and the second in the country to use the "ground return" for electric current.

...the first to actually demonstrate it. </ref> He also decided that if an [[electric current]] in a wire could move a magnet, then if the magnet were held fixed, and th ...moving magnet, or a wire moving through a magnetic field) can 'induce' an electric current in a wire (''see the section [[#Electromagnetic induction|below]] on electr

...n]] (O₂) and hydrogen]] (H₂) due to an [[electricity|electric current]] being passed through the water. This [[electrolysis|electrolytic process]

..., which is also known as manual metal arc welding (MMA) or stick welding. Electric current is used to strike an arc between the base material and consumable electrode ...methods involved are similar to that of resistance welding, but instead of electric current, vibration provides energy input. Welding metals with this process does no

...flow of positive charges) will run from positive to negative voltage. This electric current transports energy, In general, the energy carried by an electric current is measured in kWh (kilowatt&times;hour), instead of the regular [[SI]] uni

==[[Electric current]]== Electric current is a measure of the movement of electric charges in an electronic circuit.

...Fermi level applies to a system in thermal equilibrium. In cases where an electric current flows under an applied voltage, the system is not in thermal equilibrium, b

...objects. In other words, when the ring changes state (e.g. a change in an electric current flowing around the ring), the entire ring changes state at the exact same i

...ical substance by measuring the [[Voltage|electrical potential ]] and/or [[electric current]] in an [[electrochemical cell]] containing the substance.

A is the standard symbol for the ampere, the unit of electric current.

...fference in salinity creates an [[electric potential]] across the hull. An electric current then flows through the hull, between the laminae of sea-water separated by

...d that unites the western and central parts of the continent, as it is the electric current by which the transmission of sentiment is effected, and its potency is incr