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The Collaborative International Dictionary
Inductor

Inductor \In*duct"or\, n. [L., one who stirs up or rouses. See Induce.]

  1. The person who inducts another into an office or benefice.

  2. (Elec.) That portion of an electrical apparatus, in which is the inducing charge or current.

Douglas Harper's Etymology Dictionary
inductor

1650s, from Latin inductor, agent noun from past participle stem of inducere (see induce). Electromagnetic sense begins in 1837.

Wiktionary
inductor

n. 1 (context physics English) a passive device that introduces inductance into an electrical circuit 2 (context medicine English) an evocator or an organizer

WordNet
inductor

n. an electrical device that introduces inductance into a circuit [syn: inductance]

Wikipedia
Inductor

An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. Energy is stored in a magnetic field in the coil as long as current flows. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction. According to Lenz's law the direction of induced electromotive force (or "e.m.f.") is always such that it opposes the change in current that created it. As a result, inductors always oppose a change in current, in the same way that a flywheel opposes a change in rotational velocity. Care should be taken not to confuse this with the resistance provided by a resistor.

An inductor is characterized by its inductance, the ratio of the voltage to the rate of change of current, which has units of henries (H). Inductors have values that typically range from 1 µH (10H) to 1 H. Many inductors have a magnetic core made of iron or ferrite inside the coil, which serves to increase the magnetic field and thus the inductance. Along with capacitors and resistors, inductors are one of the three passive linear circuit elements that make up electric circuits. Inductors are widely used in alternating current (AC) electronic equipment, particularly in radio equipment. They are used to block AC while allowing DC to pass; inductors designed for this purpose are called chokes. They are also used in electronic filters to separate signals of different frequencies, and in combination with capacitors to make tuned circuits, used to tune radio and TV receivers.

Usage examples of "inductor".

She picked up a set of gloves and some tools for her father, and then she went into the little nook where all of the resistors, capacitors, and inductors hung in bubble packs.

She had purchased a book on the subject months ago in Boston and had been reading it in free moments, learning about all the mysterious hieroglyphs that made up a circuit diagram: resistors, capacitors, and inductors.

It would take so long for the inductor waves of the new frequency to reach out the two million miles and then collapse into the analyzers and give their report of any object in space which had tended to deform them.

But when I told three of my students that Gullit and Van Basten were coming to town to pit their wits against Lineker and Shilton, the temptation was too much even for them, and I was instructed to buy tickets and act as their chaperon and inductor for the evening.