Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definition: Inductor |
InductorNoun1. An electrical device that introduces inductance into a circuit. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Etymology: Inductor \In*duct"or\, noun. [Latin expression, one who stirs up or rouses. See Induce.]. (references) |
| Domain | Definition |
Electrical Engineering | A device used because of its inductance. Source: European Union. (references) |
| A coil of wire wrapped a specific number of turns around a core material, used to produce inductance in a circuit. Source: European Union. (references) | |
Physics | In an electrical machine or device, magnets used to provide a magnetic field. They may be permanent magnets or electromagnets(BTM). Source: European Union. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
An inductor is a passive electrical component that produces a voltage proportional to the instantaneous change in current flowing through it:
where V is the voltage generated, dI/dt is the rate of change of current, and L is a property of the device called inductance. The SI unit of inductance is the henry (H).
- V = L × dI/dt,
Thus an inductor resists changes in current. A pure inductor does not offer any resistance to direct current (an actual one does slightly), except when the current is switched on and off, then it makes the change more gradual.
When a sinusoidal alternating current flows through an inductor, a sinusoidal alternating voltage (or electromotive force, abbr. emf) is induced. The amplitude of the emf is related to the amplitude of the current and to the frequency of the sinusoid by the following equation.
where ω is the angular frequency of the sinusoid defined in terms of the frequency f as
- V = I × ωL
The term ωL is known as inductive reactance, which is denoted by the symbol XL and is the positive imaginary component of impedance.
- ω = 2πf
Construction
An inductor is usually constructed as a coil of conducting material, usually copper wire. A core of ferrous material is sometimes used.
This effect can be understood as follows: the current produces a magnetic field; a change in current gives a change of this magnetic field; a changing magnetic field causes an electromotive force in the conductor. An induction coil is closely related to electromagnets in structure, but used for a different purpose—to store energy in a magnetic field.
Smaller inductors used for very high frequencies are sometimes made with a wire passing through a ferrite cylinder or bead.
History
In 1885, William Stanley, Jr built the first practical induction coil based on Lucien Gaulard and Josiah Willard Gibbs' idea. It was the precursor of the modern transformer.
See also
Electricity, Electronics, Capacitor, Transformer
Synonyms
coil, induction coil, choke, reactorSource: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Inductor."
Synonym: InductorSynonym: inductance (n). (additional references) |
Crosswords: Inductor |
| Specialty definitions using "inductor": Circuit Lag, continuous wave ♦ inductive tuning ♦ Reactive Power ♦ smoothing inductor. (references) |
| Non-English Usage: "Inductor" is also a word in the following languages with English translations in parentheses. Romanian (inductive, inductor), Spanish (inductor). |
| Domain | Title |
Books | |
High Tech |
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Source: compiled by the editor from various references; see credits. | |
| "Inductor" is generally used as a noun (singular) -- approximately 100.00% of the time. "Inductor" is used about 44 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (singular) | 100% | 44 | 51,500 |
Source: compiled by the editor from several corpora; see credits.
Expressions using "inductor": inline inductor ♦ smoothing inductor. Additional references. | |
| Hyphenated Usage | |
Beginning with "inductor": inductor-wise. | |
| Source: compiled by the editor from various references; see credits. | |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Language | Translations for "inductor"; alternative meanings/domain in parentheses. | |
Albanian | induktor (magneto). (various references) | |
Arabic | مغو (enticing, insidious, seducer, seductive, tempting). (various references) | |
Bulgarian | индуктор (induction coil). (various references) | |
Chinese | 感应器. (various references) | |
Czech | induktor. (various references) | |
Danish | induktor, induktivitet (inductance), induktionsspole (inductance), induktionsapparat, induktansspole (choke, choke coil, inductance), spole (bobbin, coil, drum, lifter, pirn, reel, solenoid, spool, to cone, to reel, to spool, to wind, twist cop, warm cop, winder), selvinduktionsspole (inductance), reaktansspole (inductance), feltmagnet (field magnet). (various references) | |
Dutch | inductor (field magnet, inductance), inductiespoel (inductance), inductieklos (inductance), inductantie (inductance), zelfinductiespoel (choke, coil, inductance, reactance coil, reactor, self-induction coil), veldmagneet (field magnet), spoel (bobbin, coil, spindle, spool), smoorspoel (chike coil, choke, choke coil, coil, impedance coil, inductance, reactance coil, reactor, self-induction coil, small choke). (various references) | |
Finnish | induktori, induktiokela (inductance), kuristin (choke, choke coil, inductance). (various references) | |
French | inducteur (inductive). (various references) | |
German | Induktor (rotor). (various references) | |
Greek | στραγγαλιστικό πηνίο (choke, choke coil, inductance), μαγνήτης διέγερσης μαγνητικής ροής (field magnet), πηνίο αυτεπαγωγής (inductance), πηνίο (bobbin, coil, spool), επαγωγέασ, επαγωγέας (challenger, choke, coil, field magnet, inductance, primary, primary winding, reactance coil, reactor, self-induction coil, stator), αυτεπαγωγή (self-induction). (various references) | |
Hebrew | משרן. (various references) | |
Hungarian | induktor, áramfejlesztõ készülék, áramfejlesztő készülék. (various references) | |
Italian | investitore (investor), induttore (field magnet, inducer, inductance, primary, primary winding, starter, stator), induttanza (inductance), bobina di autoinduzione (choke, coil, inductance, reactance coil, reactor, self-induction coil). (various references) | |
Japanese Kanji | 誘電子 . (various references) | |
Japanese Katakana | ゆうでんし. (various references) | |
Manx | ynshellooeyr, indughteyr. (various references) | |
Pig Latin | inductoray.(various references) | |
Portuguese | indutor (inductive). (various references) | |
Romanian | inductor (inductive), bobinã de inducţie (induction coil). (various references) | |
Russian | индуктор (induction-coil, magneto). (various references) | |
Serbo-Croatian | induktor. (various references) | |
Spanish | inductor (field magnet, impeller front section, inducer, primary, primary winding, stator). (various references) | |
Swedish | induktor (inductance). (various references) | |
Turkish | indüktör. (various references) | |
Ukrainian | індуктор (magneto). (various references) | |
| Source: compiled by the editor from various translation references. | ||
Derivations | |
Words beginning with "inductor": inductors. (additional references) | |
| |
"Inductor" is suggested in spellcheckers for the following: inducor. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
| # of Phoneme Matches | Pronunciation | Word(s) rhyming with "inductor" (pronounced i'ndu"kter) |
| 6 | -n d u" k t er | conductor, semiconductor. |
| 5 | -d u" k t er | abductor. |
| 4 | -u" k t er | constructor, instructor. |
| 3 | -k t er | actor, benefactor, character, chiropractor, collector, compactor, connecter, connector, constrictor, contractor, defector, detector, detractor, director, doctor, erector, factor, Hector, injector, inspector, lector, malefactor, nectar, objector, predictor, Proctor, projector, prospector, protector, reactor, rector, refractor, sector, Specter, spectre, stricter, subcontractor, superconductor, tractor, vector, Victor. |
Source: compiled by the editor (additional references); see credits. | ||
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "c-d-i-n-o-r-t-u" | |
-1 letter: conduit, noctuid, ruction. | |
-2 letters: citron, cortin, diuron, durion, induct, nordic, rotund, untrod. | |
-3 letters: cornu, count, court, curio, cutin, dicot, donut, droit, duroc, incur, intro, nitro, ontic, orcin, round, runic, rutin, tondi, tonic, toric, tunic. | |
-4 letters: cion, coin, coir, coni, cord, corn, crud, curd, curn, curt, dint, dirt, doit, dour, duci, duct, duit, dunt, durn. | |
| Words containing the letters "c-d-i-n-o-r-t-u" | |
+1 letter: inductors, introduce, reduction. | |
+2 letters: counterbid, discounter, introduced, introducer, introduces, production, rediscount, reductions. | |
+3 letters: contributed, counterbids, counterraid, countrified, countryfied, countryside, countrywide, destruction, discounters, incorrupted, introducers, introducing, productions, radiolucent, rediscounts, reductional, reeducation, reintroduce, uncontrived. | |
+4 letters: conductorial, conquistador, coproduction, counterfired, countermined, counterraids, countrysides, denunciatory, destructions, deuteranopic, edulcorating, introduction, introductory, jurisdiction, misconstrued, outproducing, overdiscount, precautioned, preinduction, productional, rediscounted, reductionism, reductionist, reeducations, reinoculated, reintroduced, reintroduces, reproduction, transduction, undemocratic, undercoating, unproductive. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Definition 2. Synonyms 3. Crosswords 4. Usage: Commercial | 5. Usage Frequency 6. Expressions 7. Expressions: Internet 8. Translations: Modern | 9. Derivations 10. Rhymes 11. Anagrams 12. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
