Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A magnet consisting essentially of a coil of insulated wire wrapped around a steel or iron core that is magnetized only when current flows through the wire.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
magnet which attracts metals only when electrically activated
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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An electromagnet is created when a piece of iron is coiled with a wire and electricity is passed through the coiled wire.
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This construction results in what is known as the _tubular_ or _iron-clad_ electromagnet, which is shown in section and in end view in Fig. 94.
Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc. George Patterson 1910
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The other arm carries a wire coil attached to an electric circuit-in other words, an electromagnet.
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This largest liquid chamber is surrounded by a powerful electromagnet which is capable of bending the paths of the particles so that the faint bubble-tracks become slightly curved.
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By convention, these MASIS driven ships have a 3 mega-gauss “South Pole” electromagnet plate at their stern, and a similar “North Pole” in the bow.
365 tomorrows » 2010 » March : A New Free Flash Fiction SciFi Story Every Day 2010
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By convention, these MASIS driven ships have a 3 mega-gauss “South Pole” electromagnet plate at their stern, and a similar “North Pole” in the bow.
365 tomorrows » Patricia Stewart : A New Free Flash Fiction SciFi Story Every Day 2010
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Nancy Pelosi must be thinking someone on her team swallowed a bad news electromagnet the size of a Buick.
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Wounded and held hostage with a makeshift electromagnet stuck in your chest, you take a couple of sardine cans and a used vacuum cleaner and build yourself a set of battle armor that gets you out of your predicament.
Dan Persons: ReelzChannel: Step Aside, Iron Man: Top 10 Guys Gone Metal 2010
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Wounded and held hostage with a makeshift electromagnet stuck in your chest, you take a couple of sardine ...
Dan Persons: ReelzChannel: Step Aside, Iron Man: Top 10 Guys Gone Metal 2010
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Electrons in conductive steel or cast iron pots placed above the electromagnet are jostled by the rapidly changing magnetism, but they resist and get hot.
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