solenoid(redirected from Solenoid (electricity))
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1. A current-carrying coil of wire that acts like a magnet when a current passes through it.
2. An assembly used as a switch, consisting of a coil and a metal core free to slide along the coil axis under the influence of the magnetic field.
[French solénoïde, from Greek sōlēnoeidēs, pipe-shaped : sōlēn, pipe + -oeidēs, -oid.]
so′le·noi′dal (-noid′l) adj.
1. (Electronics) a coil of wire, usually cylindrical, in which a magnetic field is set up by passing a current through it
2. (Electronics) a coil of wire, partially surrounding an iron core, that is made to move inside the coil by the magnetic field set up by a current: used to convert electrical to mechanical energy, as in the operation of a switch
3. (Automotive Engineering) such a device used as a relay, as in a motor vehicle for connecting the battery directly to the starter motor when activated by the ignition switch
[C19: from French solénoïde, from Greek sōlēn a pipe, tube]
so•le•noid(ˈsoʊ ləˌnɔɪd, ˈsɒl ə-)
a coil of wire that, when carrying current, magnetically attracts a sliding iron core.
[1825–35; < French solénoïde < Greek sōlḗn pipe, channel]
A coil of wire that acts as a magnet when an electric current passes through it.
A wire coil partly surrounding an iron core. When current flows through the wire it produces an electromagnetic effect.
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|Noun||1.||solenoid - a coil of wire around an iron core; becomes a magnet when current passes through the coil|
coil - reactor consisting of a spiral of insulated wire that introduces inductance into a circuit
magnet - (physics) a device that attracts iron and produces a magnetic field