| magnetic field n. A condition found in the region around a magnet or an electric current, characterized by the existence of a detectable magnetic force at every point in the region and by the existence of magnetic poles. |
magnetic field
n
(Physics / General Physics) 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
| magnetic field 1. 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. 2. See magnetic field strength. |
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| Noun | 1. |  magnetic field - the lines of force surrounding a permanent magnet or a moving charged particlefield of force, force field, field - the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it magnetosphere - the magnetic field of a planet; the volume around the planet in which charged particles are subject more to the planet's magnetic field than to the solar magnetic field solar magnetic field - the magnetic field of the sun |
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