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...]] '''B''' (proportional to the magnetic field '''H''') caused by a direct electric current in a wire. Biot and Savart interpreted their measurements by an integral re ...''' due to infinitesimal piece d'''s''' (red) of wire (blue) transporting electric current ''i''. }}

...name=Carlin/> Nullors represent an ideal [[amplifier]], having infinite [[electric current|current]], [[voltage]], [[transconductance]] and [[transimpedance]] gain.<r

...later able to observe frog blood cell dedifferentiation [[in vitro]] in an electric current. The current also enabled adult rats to partially regenerate an amputated l

<tr> <td><i>I</i> </td> <td>[[Electric current]] </td> <td>[[ampere]] (A) </td> <td>10<i>c</i>...

...jar]] (a device used to store static electricity), Galvani found that the electric current delivered by the two would cause the contraction of muscles in the legs of

...cite web |url=http://physics.nist.gov/cuu/Units/ampere.html |title=Unit of electric current (ampere) |accessdate=2007-08-11 |work=Historical context of the SI |publi

...ature and can be directly observed. A planar wire loop conducting a steady electric current resembles a magnetic dipole at distances large compared to the dimensions o

...y placing them in a coil of wire (a [[solenoid]]) through which a direct [[electric current]] is running. Some substances can be magnetized more easily than others. So

...ductor]] device that allows a signal at its input terminal(s) (usually a [[Electric current|current]] or a [[Voltage|voltage]]) to control an output signal at its outp

...ble light. The ultraviolet light is produced within the tube by passing an electric current through a gas that is comprised of mercury vapor. Since these lamps contain

...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