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- ...n the [[International System of Units]] (SI) relating mechanical force and electric current in [[classical vacuum]] with a defined value {{nowrap|''μ<sub>0</sub>''}290 bytes (42 words) - 19:00, 27 March 2011
- Electric current in the Gaussian system of units; symbol statA; 1 statA = 1 A/(10⋅''c'167 bytes (26 words) - 07:36, 10 July 2008
- ...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 outp372 bytes (56 words) - 13:22, 10 June 2011
- 580 bytes (96 words) - 20:07, 20 September 2021
- ...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 magnet3 KB (415 words) - 13:04, 29 March 2009
- '''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
- ...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 the3 KB (510 words) - 10:16, 16 July 2008
- 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
- 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|acces3 KB (445 words) - 19:17, 10 September 2021
- ...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
- ...ring electrolysis was the accepted manner of measuring electric charge and electric current.1 KB (197 words) - 12:15, 20 December 2007
- {{r|Electric current}}2 KB (289 words) - 12:57, 15 March 2024
- ...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
- where ''i'' is electric current (in ampere) and dissipated power is ''P'' (in watt = J/s), follows that the3 KB (527 words) - 03:55, 9 July 2008
- {{r|Electric current}}873 bytes (113 words) - 09:04, 20 April 2011
- ...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
- 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
- ...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
- {{r|Electric current}}1 KB (162 words) - 04:48, 2 September 2009
- ...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