- a device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it.
Origin of electromagnet
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for electromagnet
What would be the result if a hard steel core were placed in the electromagnet?Physics
Willis Eugene Tower
E is the electromagnet of the relay, and R A is its armature.Things a Boy Should Know About Electricity
Thomas M. (Thomas Matthew) St. John
The socket also contains a switch controlled by an electromagnet.
This would be the same whether the magnet were a permanent or an electromagnet.ABC of Electricity
William Henry Meadowcroft
Impulses sent through the electromagnet will then drive the clock.
- a magnet consisting of an iron or steel core wound with a coil of wire, through which a current is passed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for electromagnet
Online Etymology Dictionary, © 2010 Douglas Harper
- A device consisting of a coil of insulated wire wrapped around an iron core that becomes magnetized when an electric current flows through the wire. Electromagnets are used to convert electrical control signals into mechanical movements. See Note at magnetism.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.