What does magnetic field mean?

Definitions for magnetic field
mag·netic field

This dictionary definitions page includes all the possible meanings, example usage and translations of the word magnetic field.

Princeton's WordNet

  1. magnetic field, magnetic flux, fluxnoun

    the lines of force surrounding a permanent magnet or a moving charged particle

Wiktionary

  1. magnetic fieldnoun

    a condition in the space around a magnet or electric current in which there is a detectable magnetic force and two magnetic poles are present

Wikipedia

  1. Magnetic field

    A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents,: ch1  and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.: ch13 : 278  A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets. In addition, a nonuniform magnetic field exerts minuscule forces on "nonmagnetic" materials by three other magnetic effects: paramagnetism, diamagnetism, and antiferromagnetism, although these forces are usually so small they can only be detected by laboratory equipment. Magnetic fields surround magnetized materials, and are created by electric currents such as those used in electromagnets, and by electric fields varying in time. Since both strength and direction of a magnetic field may vary with location, it is described mathematically by a function assigning a vector to each point of space, called a vector field. In electromagnetics, the term "magnetic field" is used for two distinct but closely related vector fields denoted by the symbols B and H. In the International System of Units, the unit of H, magnetic field strength, is the ampere per meter (A/m).: 22  The unit of B, the magnetic flux density, is the tesla (in SI base units: kilogram per second2 per ampere),: 21  which is equivalent to newton per meter per ampere. H and B differ in how they account for magnetization. In vacuum, the two fields are related through the vacuum permeability, B / μ 0 = H {\displaystyle \mathbf {B} /\mu _{0}=\mathbf {H} } ; but in a magnetized material, the quantities on each side of this equation differ by the magnetization field of the material. Magnetic fields are produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin.: ch1  Magnetic fields and electric fields are interrelated and are both components of the electromagnetic force, one of the four fundamental forces of nature. Magnetic fields are used throughout modern technology, particularly in electrical engineering and electromechanics. Rotating magnetic fields are used in both electric motors and generators. The interaction of magnetic fields in electric devices such as transformers is conceptualized and investigated as magnetic circuits. Magnetic forces give information about the charge carriers in a material through the Hall effect. The Earth produces its own magnetic field, which shields the Earth's ozone layer from the solar wind and is important in navigation using a compass.

ChatGPT

  1. magnetic field

    A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. It surrounds magnets and electric currents and is detected by the force it exerts on other magnetic materials and moving electric charges. It is usually represented by lines flowing from the magnet's north pole to its south pole. The strength and direction of a magnetic field can be measured using a magnetic compass or more advanced devices like magnetometers.

Wikidata

  1. Magnetic field

    A magnetic field is a mathematical description of the magnetic influence of electric currents and magnetic materials. The magnetic field at any given point is specified by both a direction and a magnitude; as such it is a vector field. The magnetic field is most commonly defined in terms of the Lorentz force it exerts on moving electric charges. Magnetic field can refer to two separate but closely related fields which are denoted by the symbols B and H. Magnetic fields are produced by moving electric charges and the intrinsic magnetic moments of elementary particles associated with a fundamental quantum property, their spin. In special relativity, electric and magnetic fields are two interrelated aspects of a single object, called the electromagnetic tensor; the split of this tensor into electric and magnetic fields depends on the relative velocity of the observer and charge. In quantum physics, the electromagnetic field is quantized and electromagnetic interactions result from the exchange of photons. In everyday life, magnetic fields are most often encountered as an invisible force created by permanent magnets which pulls on iron objects and attracts or repels other magnets. Magnetic fields are very widely used throughout modern technology, particularly in electrical engineering and electromechanics. The Earth produces its own magnetic field, which is important in navigation. Rotating magnetic fields are utilized in both electric motors and generators. Magnetic forces give information about the charge carriers in a material through the Hall effect. The interaction of magnetic fields in electric devices such as transformers is studied in the discipline of magnetic circuits.

Editors Contribution

  1. magnetic field

    Is the magnetic effect of electric currents and magnetic material at a given point is specified by a direction and movement of energy.

    Magnetic fields are in use in modern technology, particularly in electrical engineering. The Earth produces its own magnetic field, which is important in navigation, and it plays a role in the integration of the solar wind.


    Submitted by MaryC on October 20, 2015  

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Numerology

  1. Chaldean Numerology

    The numerical value of magnetic field in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of magnetic field in Pythagorean Numerology is: 9

Examples of magnetic field in a Sentence

  1. John Foster:

    The constant activity on the surface of the Sun is punctuated by violent outbursts powered the Sun’s strong magnetic field. Solar flares emit bursts of X-rays that travel outward at the speed of light, coronal mass ejections( CMEs) are giant eruptions of hot gasses from the Sun’s outer atmosphere. As this blast wave of solar material( plasma) streams towards the planets at 1000 km/sec, it sweeps up the magnetic field in its path, creating a magnetized shockwave of the type that struck Earth’s magnetic field on October 8, 2013.

  2. Vladimir Airapetian:

    In our paper, we have shown that a super Carrington-type CME event would have greatly compressed the magnetic field, this would ignite huge electric currents on Earth and let energetic particles penetrate the Earth’s atmosphere and surface.

  3. Sebastian Pineda:

    Whether a planet survives with an atmosphere or not can depend on whether the planet has a strong magnetic field or not.

  4. Kimee Moore:

    Finding something as minute as these changes in something so immense as Jupiters magnetic field was a challenge, having a baseline of close-up observations over four decades long provided us with just enough data to confirm that Jupiters magnetic field does indeed change over time.

  5. Terry Sabaka:

    The magnetic field is actually a superposition of fields from many current sources.


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"magnetic field." Definitions.net. STANDS4 LLC, 2024. Web. 22 Jul 2024. <https://www.definitions.net/definition/magnetic+field>.

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