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electromagnet    音标拼音: [ɪl,ɛktrom'ægnət]
n. 电磁石

电磁石

electromagnet
电矶( 起重机 )

electromagnet
n 1: a temporary magnet made by coiling wire around an iron
core; when current flows in the coil the iron becomes a
magnet

Magnet \Mag"net\ (m[a^]g"n[e^]t), n. [OE. magnete, OF. magnete,
L. magnes, -etis, Gr. Magnh^tis li`qos a magnet, metal that
looked like silver, prop., Magnesian stone, fr. Gr.
Magnhsi`a, a country in Thessaly. Cf. {Magnesia},
{Manganese}.]
1. The loadstone; a species of iron ore (the ferrosoferric or
magnetic ore, {Fe3O4}) which has the property of
attracting iron and some of its ores, and, when freely
suspended, of pointing to the poles; -- called also
{natural magnet}.
[1913 Webster]

Dinocrates began to make the arched roof of the
temple of Arsino["e] all of magnet, or this
loadstone. --Holland.
[1913 Webster]

Two magnets, heaven and earth, allure to bliss,
The larger loadstone that, the nearer this.
--Dryden.
[1913 Webster]

2. (Physics) A bar or mass of steel or iron to which the
peculiar properties of the loadstone have been imparted;
-- called, in distinction from the loadstone, an
{artificial magnet}.
[1913 Webster]

Note: An artificial magnet, produced by the action of an
electrical current, is called an {electro-magnet}.
[1913 Webster]

{Field magnet} (Physics & Elec.), a magnet used for producing
and maintaining a magnetic field; -- used especially of
the stationary or exciting magnet of a dynamo or
electromotor in distinction from that of the moving
portion or armature.
[1913 Webster] Magnetic


Electro-magnet \E*lec`tro-mag"net\, n.
A mass, usually of soft iron, but sometimes of some other
magnetic metal, as nickel or cobalt, rendered temporarily
magnetic by being placed within a coil of wire through which
a current of electricity is passing. The metal is generally
in the form of a bar, either straight, or bent into the shape
of a horseshoe.
[1913 Webster]


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  • Electromagnet - Wikipedia
    An electromagnet is a type of magnet in which the magnetic field is produced by an electric current Electromagnets usually consist of copper wire wound into a coil
  • 电磁铁_百度百科
    电磁铁是通电产生电磁的一种装置。 在铁芯的外部缠绕与其功率相匹配的导电绕组,这种通有电流的线圈像磁铁一样具有磁性,它也叫做电磁铁(electromagnet)。 我们通常把它制成条形或蹄形状,以使铁芯更加容易磁化。
  • Electromagnet | Uses, Properties Applications | Britannica
    An electromagnet is used wherever controllable magnets are required, as in contrivances in which the magnetic flux is to be varied, reversed, or switched on and off
  • How Electromagnets Work | HowStuffWorks
    An electromagnet results when electrical currents flow around some ferromagnetic core The Earth's core is iron, and we know it has a north pole and a south pole
  • electromagnet_百度百科
    1 N-COUNT An electromagnet is a magnet that consists of a piece of iron or steel surrounded by a coil The metal becomes magnetic when an electric current is passed through the coil
  • electromagnet - 搜索 词典
    8 It has an electromagnet at the base which allow to shift the weight and keep it in an upright position 它 的 底部 有 一个 电磁 体, 可以 调整 重心 从而 保持 手机 直立。
  • Electromagnet - GeeksforGeeks
    An electromagnet is a magnet powered by electricity, creating a magnetic field that can be controlled It works by passing an electric current through a coil of wire
  • electromagnet是什么意思_electromagnet的翻译_音标_读音_用法_例句_爱词霸在线词典
    爱词霸权威在线词典,为您提供electromagnet的中文意思,electromagnet的用法讲解,electromagnet的读音,electromagnet的同义词,electromagnet的反义词,electromagnet的例句等英语服务。
  • Electromagnet | How does is work, Types Applications
    An electromagnet is a type of magnet that generates a magnetic field when an electric current is applied to it Unlike permanent magnets, electromagnets can be turned on and off by controlling the flow of electric current
  • Electromagnetism | Definition, Equations, Facts | Britannica
    Electricity and magnetism are two aspects of electromagnetism Electricity and magnetism were long thought to be separate forces It was not until the 19th century that they were finally treated as interrelated phenomena





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