induction coil

induction coil
a transformer for producing high-voltage alternating current from a low-voltage direct current, consisting essentially of two concentric coils with a common soft-iron core, a primary coil with relatively few windings of heavy wire, and a secondary coil with many turns of fine wire. Excitation of the primary coil by rapidly interrupted or variable current induces high voltage in the secondary coil. Also called Ruhmkorff coil.
[1875-80]

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Universalium. 2010.

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  • Induction coil — Induction In*duc tion, n. [L. inductio: cf. F. induction. See {Induct}.] [1913 Webster] 1. The act or process of inducting or bringing in; introduction; entrance; beginning; commencement. [1913 Webster] I know not you; nor am I well pleased to… …   The Collaborative International Dictionary of English

  • Induction coil — Coil Coil, n. 1. A ring, series of rings, or spiral, into which a rope, or other like thing, is wound. [1913 Webster] The wild grapevines that twisted their coils from trec to tree. W. Irving. [1913 Webster] 2. Fig.: Entanglement; toil; mesh;… …   The Collaborative International Dictionary of English

  • induction coil — ► NOUN ▪ a coil for generating intermittent high voltage from a direct current …   English terms dictionary

  • induction coil — n. an apparatus made up of two magnetically coupled coils in a circuit in which interruptions of the direct current supply to one coil produce a high voltage alternating current in the other …   English World dictionary

  • Induction coil — An induction coil or spark coil (archaically known as a Ruhmkorff coil) is a type of disruptive discharge coil. It is a type of electrical transformer used to produce high voltage pulses from a low voltage DC supply. To create the flux changes… …   Wikipedia

  • induction coil — UK / US noun [countable] Word forms induction coil : singular induction coil plural induction coils physics a piece of equipment used for changing low voltage (= an amount of electricity) to high voltage …   English dictionary

  • induction coil — indukcijos ritė statusas T sritis fizika atitikmenys: angl. induction coil vok. Induktionsspule, f rus. индукционная катушка, f pranc. bobine d’induction, f …   Fizikos terminų žodynas

  • induction coil — coil that accumulates energy in electrical circuits …   English contemporary dictionary

  • induction coil — noun a coil for producing a high voltage from a low voltage source • Hypernyms: ↑coil • Hyponyms: ↑ignition coil, ↑spark coil • Part Holonyms: ↑transformer • Part Meronyms: ↑ …   Useful english dictionary

  • induction coil — noun Date: 1837 an apparatus for obtaining intermittent high voltage that consists of a primary coil through which the direct current flows, an interrupter, and a secondary coil of a larger number of turns in which the high voltage is induced …   New Collegiate Dictionary

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