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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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  • 1 - Wikipedia
    1 (one, unit, unity) is a number, numeral, and grapheme It is the first and smallest positive integer of the infinite sequence of natural numbers
  • I Can Show the Number 1 in Many Ways - YouTube
    Learn the different ways number 1 can be represented See the number one on a number line, five frame, ten frame, numeral, word, dice, dominoes, tally mark, fingers and picture representations
  • 1 - Wiktionary, the free dictionary
    Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numerals (compare Devanagari script १ (1, “éka”)), possibly influenced by Roman numeral Ⅰ, both ultimately from using a single stroke to represent the number one
  • 1 (number) - New World Encyclopedia
    The glyph used today in the Western world to represent the number 1, a vertical line, often with a serif at the top and sometimes a short horizontal line at the bottom, traces its roots back to the Indians, who wrote 1 as a horizontal line, as is still the case in Chinese script
  • 1 (number) | Math Wiki | Fandom
    1 is the natural number exceeding 0 and preceding 2, the Hindu-Arabic numeral for the number one (the unit) It is the smallest positive integer, and smallest natural number 1 is the multiplicative identity, i e any number multiplied by 1 equals itself, for example: a ⋅ 1 = a {\displaystyle a
  • 1 (number) - Simple English Wikipedia, the free encyclopedia
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    REMASTERED IN HD!Official Music Video for #1 performed by Nelly Follow Nelly:Instagram: https: www instagram com nellyFacebook: https: www facebook com ne
  • 1News
    NZ First wants to buy back the bank and merge it with Kiwibank Critical underwater cables will be better protected from vessels in our waters by new technology, the Government announced today
  • The number one - Britannica
    The number one, often written as '1', is a fundamental concept in mathematics It is considered a natural number, meaning it's a positive integer obtained by adding 1 to itself one or more times
  • 1 - Wikiwand
    The number 1 is the first natural number after 0 Each natural number, including 1, is constructed by succession, that is, by adding 1 to the previous natural number





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