electric current
electric current electric current, electrical current electrical current, the movement of electrically charged particles, atoms, or ions, through solids, liquids, gases, or free space; the term is usually used of relatively smooth movements of electric charge through conductors, whether constant or variable. Sudden movements of charge are usually referred to by other terms, such as {spark} or {lightning} or {discharge}. In metallic conductors the electric current is usually due to movement of electrons through the metal. The current is measured as the rate of movement of charge per unit time, and is counted in units of amperes. As a formal definition, the direction of movement of electric current is considered as the same as the direction of movement of positive charge, or in a direction opposite to the movement of negative charge. Electric current may move constantly in a single direction, called {direct current} (abbreviated {DC}), or may move alternately in one direction and then the opposite direction, called {alternating current} (abbreviated {AC}). [PJC]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Electric current — Electric E*lec tric ([ e]*l[e^]k tr[i^]k), Electrical E*lec tric*al ([ e]*l[e^]k tr[i^]*kal), a. [L. electrum amber, a mixed metal, Gr. h lektron; akin to hle ktwr the beaming sun, cf. Skr. arc to beam, shine: cf. F. [ e]lectrique. The name came… …   The Collaborative International Dictionary of English

  • Electric current — Electromagnetism …   Wikipedia

  • electric current — Elect. the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time: measured in amperes. Also called current, electricity. [1830 40] * * *… …   Universalium

  • electric current — Electricity E lec*tric i*ty ([=e] l[e^]k*tr[i^]s [i^]*t[y^]), n.; pl. {Electricities} ([=e] l[e^]k*tr[i^]s [i^]*t[i^]z). [Cf. F. [ e]lectricit[ e]. See {Electric}.] 1. (Physics) a property of certain of the fundamental particles of which matter… …   The Collaborative International Dictionary of English

  • electric current — noun a flow of electricity through a conductor (Freq. 4) the current was measured in amperes • Syn: ↑current • Hypernyms: ↑electrical phenomenon • Hyponyms: ↑juice, ↑ …   Useful english dictionary

  • electric current — the stream of electricity that moves along a conductor. Symbol I. An electric current is due to a difference of potential between two points, this difference being measured in volts. The volume of flow depends on the difference of potential and… …   Medical dictionary

  • electric current — elektros srovės stipris statusas T sritis Standartizacija ir metrologija apibrėžtis Elektros kiekis, per vienetinį laiko tarpą pratekantis per laidininko skerspjūvį. Elektros srovės stipris yra vienas iš pagrindinių SI dydžių. atitikmenys: angl.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • electric current — elektros srovė statusas T sritis automatika atitikmenys: angl. electric current vok. elektrischer Strom, m rus. электрический ток, m pranc. courant électrique, m …   Automatikos terminų žodynas

  • electric current — elektros srovė statusas T sritis Standartizacija ir metrologija apibrėžtis Kryptingas krūvininkų judėjimas. atitikmenys: angl. electric current vok. elektrischer Strom, m rus. электрический ток, m pranc. courant électrique, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • electric current — elektros srovė statusas T sritis chemija apibrėžtis Kryptingas krūvininkų judėjimas. atitikmenys: angl. electric current rus. электрический ток …   Chemijos terminų aiškinamasis žodynas

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”