magnetic field
a region of space near a magnet, electric current, or moving charged particle in which a magnetic force acts on any other magnet, electric current, or moving charged particle.
Origin of magnetic field
1Words Nearby magnetic field
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use magnetic field in a sentence
Because they are not deflected by magnetic fields, gamma rays point back to their sources, revealing the whereabouts of the itinerant cosmic rays.
The Milky Way’s newfound high-energy glow hints at the secrets of cosmic rays | Emily Conover | February 2, 2021 | Science NewsArmed with magnetometers for measuring magnetic fields, researchers also mapped out the magnetic orientation of seafloor rocks — how their iron-bearing minerals are oriented relative to Earth’s field.
How the Earth-shaking theory of plate tectonics was born | Carolyn Gramling | January 13, 2021 | Science NewsCosmologists have no end of ideas, but one overlooked option is the possible existence of magnetic fields at the birth of the universe.
When he then induced an artificial magnetic field around the tanks, the turtles continued in what they thought was a northeasterly direction.
How Sea Turtles Find Their Way - Issue 94: Evolving | Jason G. Goldman | December 16, 2020 | NautilusThe combination of intense magnetic fields and hot gasses boiling up from below the surface creates the streaky appearance in the image, as hot and cool gas spiders out from the darker center, said the NSO in a press release.
Images like this one could help reveal the Sun’s inner workings | María Paula Rubiano A. | December 11, 2020 | Popular-Science
That shows the magnetic field at work protecting us from these highly energetic particles.
While every neutron star has an intense magnetic field, the ones known as magnetars are exceptional.
The pulses are from a beam of light produced by the intense magnetic field, which sweeps across Earth as the neutron star rotates.
During that passage, the intense magnetic field twisted the light.
Magnetic-field exposure is typically associated with microwave ovens, power lines, vacuum cleaners, and hair dryers.
Should Pregnant Women Ditch SSRIs, Microwaves and Cellphones? | Anneli Rufus | November 19, 2011 | THE DAILY BEASTThis magnetic field can be increased in value, without increasing the current in the conductor, by adding more turns to the coil.
The Boy Mechanic, Book 2 | VariousThe current produced by the induced electrical pressure aids the current in the winding of coil A in producing a magnetic field.
The Boy Mechanic, Book 2 | VariousThe strength of a magnetic field due to a current in a conductor can be greatly increased by forming a coil of the conductor.
The Boy Mechanic, Book 2 | VariousA magnetic field may be produced through a coil of wire by winding it on the magnetic circuit shown in Fig. 8.
The Boy Mechanic, Book 2 | VariousThis simple experiment proved to Oersted that there was a magnetic field produced by the current in the conductor.
The Boy Mechanic, Book 2 | Various
British Dictionary definitions for magnetic field
a field of force surrounding a permanent magnet or a moving charged particle, in which another permanent magnet or moving charge experiences a force: Compare electric field
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
Scientific definitions for magnetic field
A field of force associated with changing electric fields, as when electric charges are in motion. Magnetic fields exert deflective forces on moving electric charges. Most magnets have magnetic fields as a result of the spinning motion of the electrons orbiting the atoms of which they are composed; electromagnets create such fields from electric current moving through coils. Large objects, such as the earth, other planets, and stars, also produce magnetic fields. See Note at magnetism.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for magnetic field
A magnetic field is said to exist in a region if a force can be exerted on a magnet. If a compass needle is deflected when it is put at a particular location, we say a magnetic field exists at that point, and the strength of the field is measured by the strength of the force of the compass needle. The Earth, the sun, and the Milky Way galaxy all have magnetic fields. All known magnetic fields are caused by the movement of electrical charges. Electrons in orbit in atoms give rise to magnetic fields, so that every atom is, like the Earth, surrounded by a magnetic field. (See magnet and magnetism.)
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.
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