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...straight conductor|Biot-Savart law]] giving the field |'''H'''| due to an electric current ''I'' in an infinitely long straight conductor, ...ic flux density and the oersted is defined through the field created by an electric current.

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In [[physics]], the '''abampere''', symbol abA, is the unit of electric current in the cgs-emu (centimeter-gram-second electromagnetic) system of units:

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...st and chemist. He is best known for his discovery of the influence of an electric current on the orientation of a compass needle (April 1820).

...1831 on basis of observations that a change in a magnetic field induces an electric current. This is the phenomenon of electromagnetic induction. ...etic flux that cuts across the circuit. By [[Ohm's law]] an EMF induces an electric current in a conductor.

...ield of our electomagnets, which is created from a large, 200 Amp or more, electric current. [[User:David E. Volk|David E. Volk]] 14:30, 20 May 2008 (CDT)

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...simple [[linear]] [[Electrical network|circuit]] that produces an output [[Electric current|current]] (''I''_X) that is a fraction of its input current (''I'

...]] '''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''. }}

...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

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

<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

...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

...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

...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

...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

...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