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magnetic field

magnetic field

78 4.0
An area around a magnet or electric current where a magnet's force moves objects
  • noun
  • /mæɡˈnɛtɪk fiːld/
  • Specialized
: campo magnético
  • The split is caused by the magnetic field, due to the Zeeman effect.
  • magnetic field lines
  • Earth's magnetic field
  • magnetic field strength

When it reaches Earth, that magnetic field connects with that of Earth.

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Examples

  • The magnetic field around the Earth protects us from harmful solar radiation.

  • Birds have the ability to pick up on magnetic fields, which we totally lack.

  • So the magnetic field lines look like this.

  • OK, so when you apply a strong magnetic field to it, look what happens.

  • All life is connected through the magnetic fields of the Earth.

  • We asked the superintendent to measure the magnetic field inside the school.

    Fiction book (1992)
  • This can be accomplished by the use of intense magnetic fields.

  • And under the right magnetic field conditions they form swarms.

  • The structure of the corona is maintained by the magnetic field of the Sun.

    Academic text (1991)
  • Finally, instruments measured the magnetic field and plasma waves around the comet.

    Academic text (1992)

Synonyms

field
vsmagnetic field
  • Specialized
573 7.0

A space where a particular force or value acts

is narrower and limited to forces from electric currents or moving charged particles
force field
vsmagnetic field
  • Specialized
1 6.3

An area around an object where it pushes or pulls other objects

focuses specifically on forces from electric currents or moving charged particles
field of force
vsmagnetic field
  • Specialized
1 8.2

An area around something where its push or pull affects other things

is specific to forces caused by electric currents or moving charged particles

How Strong

magnetic intensity
  • Specialized
1 6.7
magnetic field
  • Specialized
78 4.0

Surface Forms

Morphology

magnetic + field

The meaning 'region around a magnet where magnetic force acts' is directly and transparently derived from combining 'magnetic' (possessing magnetism) with 'field' (an area or region where a force or effect is present). This is a regular compositional noun phrase common across languages and scientific usage, so a B1 learner who knows both constituents can readily infer the MWE meaning.

Etymology

Magnetic field is a way to picture a magnet and the 'space around it' where the magnet's pull works: magnetic points to the magnet and field suggests the area around it. So the phrase means the area where a magnet or an electric current can pull or push objects, which is why a compass needle lines up with the magnetic field.