INDUCTION COIL Definition & Meaning

induction coil

noun

Electricity.

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.

induction coil

noun

a transformer for producing a high voltage from a low voltage. It consists of a cylindrical primary winding of few turns, a concentric secondary winding of many turns, and often a common soft-iron core Sometimes shortened tocoil

induction coil

An electrical device consisting of a single coil of conductive material, often surrounding a metallic core, designed to establish a strong magnetic field around the coil. Changes in the current flow through the coil cause fluctuations in the magnetic field that induce a voltage across the coil. Induction coils have many applications, especially in circuits that tune to signals of specific frequencies, as in radios. The ability of an induction coil to induce a voltage is called inductance , and is measured in henrys.
Compare capacitor
A type of transformer that changes a low-voltage direct current to a high-voltage alternating current. Induction coils are used for many purposes, especially as spark coils for firing spark plugs in automobile engines and starting oil burners.

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�y��vlog History and Origins

Origin of induction coil¹

First recorded in 1875–80

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Example Sentences

Examples have not been reviewed.

The embedded serpentine induction coils in the magnetoelastic layers help generate high-fidelity electrical signals for sensing purposes.

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It's called induction welding, and it uses an induction coil to create an electromagnetic field that heats the metal for welding.

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And a magnetic induction coil controls a metal plate that conducts heat away from the electrode to rapidly cool it down and shut off the scent.

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An induction coil safely boils water, a centralized milk vessel keeps cream cold, and an auto-dimming digital display sets both brewing and alarm schedules.

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A: For readers who missed it, Kibben wrote in asking about cellphones that are compatible with induction coils, the technology employed in wireless charging.

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