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  • Electric current
    ...lasma]]. Electric current creates a [[magnetic field]], and a time-varying electric current generates an [[electromagnetic wave]], as described by [[Maxwell's equation The [[SI unit]] for electric current is the [[ampere]].
    711 bytes (103 words) - 08:37, 21 August 2011
  • Ampere (disambiguation)
    * [[Ampere (unit)]] SI unit of electric current named for André-Marie Ampère. * [[Ampere's rule]] Right-hand rule for effect of electric current on compass needle.
    530 bytes (70 words) - 12:42, 31 May 2009
  • Current mirror/Definition
    ...lude>{{Subpages}}</noinclude>An electrical circuit designed to control a [[electric current|current]] through one [[Mode (electronics)|active device]] by copying the c
    272 bytes (36 words) - 11:29, 10 June 2011
  • Electricity/Related Articles
    {{r|Electric current}}
    781 bytes (105 words) - 09:49, 7 December 2008
  • Biot–Savart law/Definition
    ...a providing the [[magnetic flux density]] generated by a wire carrying a [[electric current|direct current]] as a function of distance from the wire.
    190 bytes (27 words) - 09:55, 7 May 2011
  • Right-hand screw rule
    ...ule''', also known as '''corkscrew rule''', associates the direction of an electric current with the direction of the magnetic force lines circling the current, see [[ By convention, an electric current runs from positive to negative voltage (in a direction opposite the actual
    965 bytes (153 words) - 12:51, 11 June 2009
  • Right-hand screw rule/Definition
    Associates the direction of an electric current with the direction of the magnetic force lines encircling the current.
    154 bytes (21 words) - 10:19, 16 July 2008
  • Biot-Savart law/Definition
    Gives the magnetic field at some distance of an electric current-carrying wire.
    115 bytes (15 words) - 19:53, 21 March 2011
  • Ampere's equation/Definition
    An expression for the magnetic force between two electric current-carrying wire segments.
    125 bytes (15 words) - 09:06, 20 April 2011
  • Voltage
    Voltage is related to [[electric current|current]] and [[resistance]] in an electric circuit by [[Ohm's Law]].
    1 KB (210 words) - 16:58, 8 December 2007
  • Ampere (unit)/Definition
    Unit of electric current; symbol A; one of the seven SI base units.
    103 bytes (16 words) - 05:57, 9 July 2008
  • Density (disambiguation)
    {{rpl|Electric current density}}
    536 bytes (65 words) - 18:50, 19 December 2020
  • Abvolt
    with power ''P'' in [[erg]]/s and electric current ''i'' in abA, we obtain by [[dimensional analysis]]
    747 bytes (108 words) - 21:44, 18 April 2009
  • Abampere/Definition
    Unit of electric current in the cgs-emu system of units; symbol abA; 1 abA = 10 A.
    118 bytes (17 words) - 05:56, 9 July 2008
  • Electronic switch/Definition
    Electronic switches are devices that can stop or start an electric current as a result of the absence (or presence) of a control signal.
    172 bytes (27 words) - 07:51, 23 October 2008
  • Electricity
    In a flashlight, the batteries produce an [[electric current]] that is transported to a [[light bulb]]. The current provides the power f Batteries produce an electric current which always flows in one direction, which is called [[direct current]] (DC
    4 KB (661 words) - 14:58, 1 September 2011
  • Statampere
    In [[physics]], the '''statampere''' (symbol '''statA''') is the unit of electric current in both the cgs-esu (centimeter-gram-second electrostatic) system and the ...asymp; 3&sdot;10<sup>8</sup> m/s) and A ([[ampere]]) is the [[SI]] unit of electric current; in SI units: 1 A = 1 C/s ([[coulomb (unit)|coulomb]] per [[second]]).
    597 bytes (91 words) - 02:14, 24 October 2009
  • Hans Christian Oersted/Definition
    ...physicist and chemist best known for his discovery of the influence of an electric current on the orientation of a compass needle.
    237 bytes (32 words) - 08:07, 21 June 2008
  • Ampere's rule/Definition
    178 bytes (26 words) - 08:20, 20 June 2008
  • James Clerk Maxwell/Addendum
    ''The relation between an electric current, and the electromotive force which produces it.''
    4 KB (674 words) - 05:17, 23 February 2009
  • Magnetic constant/Definition
    ...n the [[International System of Units]] (SI) relating mechanical force and electric current in [[classical vacuum]] with a defined value {{nowrap|''&mu;<sub>0</sub>''}
    290 bytes (42 words) - 19:00, 27 March 2011
  • Statampere/Definition
    Electric current in the Gaussian system of units; symbol statA; 1 statA = 1 A/(10&sdot;''c'
    167 bytes (26 words) - 07:36, 10 July 2008
  • Transistor/Definition
    ...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
    372 bytes (56 words) - 13:22, 10 June 2011
  • Ampere's rule
    580 bytes (96 words) - 20:07, 20 September 2021
  • Gauss' law (magnetism)
    ...over a closed surface that may envelop one or more permanent magnets and electric current carrying wires. The law is called after the German mathematician [[Carl Fr ...es not exist, neither as permanent monopole, nor as monopole induced by an electric current. This law expresses the empirical fact that division of a permanent magnet
    3 KB (415 words) - 13:04, 29 March 2009
  • Ohm's law
    '''Ohm's law''' is the name of the relationship between an electric current (denoted by ''I'') flowing through a conductor and the voltage difference '
    1 KB (225 words) - 02:06, 24 October 2009
  • Ampere's law
    ...mics]], '''Ampère's law''' relates the strength of a magnetic field to the electric current that causes it. The law was first formulated by [[André-Marie Ampère]] ar We consider a closed curve ''C'' around an electric current ''i''. Other than the current ''i'' there is no matter present; this is the
    3 KB (510 words) - 10:16, 16 July 2008
  • Displacement current
    Ampère's law states that an electric current through a wire causes a magnetic field encircling the wire. In a very simil ...figure on the right a [[capacitor]] (with green plates) is charged by an [[electric current]] ''I''. The conduction current ''I'' is related to the current density ''
    6 KB (972 words) - 16:59, 27 October 2021
  • Ampere (unit)
    The '''ampere''', symbol '''A''', is the [[SI]] unit of [[electric current]]. It is defined *{{cite web|url=http://physics.nist.gov/cuu/Units/ampere.html|title=Unit of electric current (ampere)|work=The NIST reference on constants, units, and uncertainty|acces
    3 KB (445 words) - 19:17, 10 September 2021
  • Watt (unit)
    ...m the relation which states that dissipated power ''P'' is proportional to electric current ''i'' and voltage difference ''V'',
    2 KB (289 words) - 15:09, 15 August 2022
  • Faraday constant
    ...ring electrolysis was the accepted manner of measuring electric charge and electric current.
    1 KB (197 words) - 12:15, 20 December 2007
  • Electron/Related Articles
    {{r|Electric current}}
    2 KB (289 words) - 12:57, 15 March 2024
  • Metric units
    ...is system is also referred to as the ''MKS system''. Sometimes the unit of electric current, the [[ampere]], is added to the system and then it is referred to as the '
    707 bytes (114 words) - 20:53, 26 June 2009
  • Volt
    where ''i'' is electric current (in ampere) and dissipated power is ''P'' (in watt = J/s), follows that the
    3 KB (527 words) - 03:55, 9 July 2008
  • Ampere's equation/Related Articles
    {{r|Electric current}}
    873 bytes (113 words) - 09:04, 20 April 2011
  • Oersted (unit)
    ...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.
    4 KB (584 words) - 11:53, 21 September 2009
  • Abampere
    In [[physics]], the '''abampere''', symbol abA, is the unit of electric current in the cgs-emu (centimeter-gram-second electromagnetic) system of units:
    2 KB (292 words) - 09:18, 8 July 2008
  • Hans Christian Oersted
    ...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).
    5 KB (738 words) - 06:22, 12 September 2013
  • Ohm's law/Related Articles
    {{r|Electric current}}
    1 KB (162 words) - 04:48, 2 September 2009
  • Faraday's law (electromagnetism)
    ...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.
    9 KB (1,549 words) - 12:18, 11 June 2009
  • Biot–Savart law
    ...]] '''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''. }}
    11 KB (1,702 words) - 13:31, 22 April 2011
  • Nullor
    ...name=Carlin/> Nullors represent an ideal [[amplifier]], having infinite [[electric current|current]], [[voltage]], [[transconductance]] and [[transimpedance]] gain.<r
    7 KB (1,178 words) - 10:49, 10 June 2011
  • The Body Electric
    ...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
    9 KB (1,280 words) - 08:12, 20 September 2013
  • Gaussian units
    <tr> <td><i>I</i> </td> <td>[[Electric current]] </td> <td>[[ampere]] (A) </td> <td>10<i>c</i>...
    11 KB (1,527 words) - 17:15, 2 November 2021
  • Luigi Galvani
    ...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
    2 KB (367 words) - 19:24, 1 November 2013
  • Magnetic constant
    ...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
    4 KB (511 words) - 11:04, 17 April 2011
  • Relative permeability
    ...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
    11 KB (1,675 words) - 17:41, 23 April 2011
  • Magnetism
    ...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
    7 KB (1,065 words) - 11:42, 12 October 2011
  • Transistor
    ...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
    3 KB (447 words) - 13:31, 5 July 2022
  • Light bulb
    ...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
    7 KB (1,199 words) - 10:55, 9 March 2024
  • Maxwell equations
    ...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
    18 KB (2,680 words) - 18:46, 16 December 2010
  • Gauss (unit)
    ...of a [[magnetic field]] |'''H'''|. The oersted is defined by means of an electric current giving the field '''H'''.
    2 KB (269 words) - 15:51, 31 October 2021
  • Superconductivity
    ...-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
    2 KB (305 words) - 16:51, 18 March 2010
  • Ampere's equation
    Consider two wires, one carrying an electric current ''i''<sub>1</sub>, the other ''i''<sub>2</sub>. 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
    14 KB (2,145 words) - 11:48, 21 April 2011
  • André-Marie Ampère
    ...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
    10 KB (1,656 words) - 01:58, 6 February 2010
  • Solenoid (physics)
    where ''i'' is the electric current flowing through the closed path. In the path at hand ''i'' = 0.
    8 KB (1,392 words) - 07:40, 3 December 2009
  • International Bureau of Weights and Measures
    ...h CGPM adopted the ampere, the kelvin and the candela as base units, for [[electric current]], thermodynamic [[temperature]] and [[luminous intensity]] respectively.
    4 KB (656 words) - 14:43, 10 June 2010
  • Atomic units
    |[[Electric current|current]]
    13 KB (1,945 words) - 19:19, 1 June 2022
  • Semiconductor diode
    ...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.
    23 KB (3,734 words) - 07:29, 12 September 2013
  • Electric charge
    ...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
    21 KB (3,138 words) - 05:36, 6 March 2024
  • Electronic switch
    '''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
    5 KB (811 words) - 16:44, 10 June 2011
  • Current mirror
    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
    25 KB (4,187 words) - 10:12, 22 June 2011
  • Electrical synapse
    ...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
    8 KB (1,049 words) - 23:27, 6 February 2010
  • Systems of measurement
    ...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 [
    7 KB (1,122 words) - 14:55, 2 February 2023
  • International System of Units
    | electric current density || A·m<sup>&minus;2</sup>
    23 KB (3,590 words) - 20:32, 4 February 2024
  • Michael Faraday/Citable Version
    ...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
    40 KB (6,455 words) - 08:20, 1 September 2013
  • San Diego Electric Railway
    ...he west coast and the second in the country to use the "ground return" for electric current.
    19 KB (2,907 words) - 09:26, 6 July 2023
  • Michael Faraday
    ...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
    41 KB (6,564 words) - 08:21, 1 September 2013
  • Haber process
    ...n]] (O<sub>2</sub>) and hydrogen]] (H<sub>2</sub>) due to an [[electricity|electric current]] being passed through the water. This [[electrolysis|electrolytic process]
    7 KB (1,067 words) - 10:08, 28 February 2024
  • Welding
    ..., 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
    41 KB (6,367 words) - 05:51, 12 September 2013
  • Energy (science)
    ...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
    43 KB (7,032 words) - 15:15, 15 August 2022
  • Benchmark quantities
    ==[[Electric current]]== Electric current is a measure of the movement of electric charges in an electronic circuit.
    45 KB (6,572 words) - 12:36, 9 March 2024
  • Fermi function
    ...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
    19 KB (3,143 words) - 05:30, 9 September 2011
  • Quantum mechanics
    ...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
    17 KB (2,773 words) - 20:36, 6 November 2020
  • Inorganic chemistry
    ...ical substance by measuring the [[Voltage|electrical potential ]] and/or [[electric current]] in an [[electrochemical cell]] containing the substance.
    13 KB (1,921 words) - 09:37, 6 March 2024
  • A (letter)
    A is the standard symbol for the ampere, the unit of electric current.
    15 KB (2,623 words) - 12:05, 10 August 2017
  • Geophysical MASINT
    ...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
    75 KB (10,990 words) - 12:11, 31 March 2024
  • Gertrude Bell
    ...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
    30 KB (4,825 words) - 08:48, 20 March 2024
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