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Wiktionary英語版での「magnetic field」の意味 |
magnetic field
名詞
magnetic field (複数形 magnetic fields)
- (physics) 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.
- 1983, Ronald T. Merrill, Michael W. McElhinny, The Earth's Magnetic Field: Its History, Origin, and Planetary Perspective, Academic Press, page 135,
- David (1904) and Brunhes (1906) first observed magnetizations in lava flows that were roughly opposed to that of the present earth's magnetic field.
- 1996, V. R. Khalilov, Electron Strong Magnetic Field, [1988, V. R. Khalilov, Elektroni v silnom magnetom poli, Energoatomizdat, Moscow], Gordon and Breach Science Publishers, page 123,
- 2007, Eugene N. Parker, Conversations on Electric and Magnetic Fields in the Cosmos, Princeton University Press, page 25,
- The magnetic field B bears the same relation to a hypothetical magnetic charge m as the electric field bears to the electric charge q, so the development of the previous chapter can be taken over completely. The stress tensor for a magnetic field Bi is identical in form to that for the electric field. The energy density is obviously B2/8π and the magnetic field is a physical reality just like the electric field. Electric and magnetic fields superpose linearly […] . This is perhaps a convenient place to remark that a magnetic field exerts no force whatever on an electric charge.
- 1983, Ronald T. Merrill, Michael W. McElhinny, The Earth's Magnetic Field: Its History, Origin, and Planetary Perspective, Academic Press, page 135,
ウィキペディア英語版での「magnetic field」の意味 |
Magnetic field
出典:『Wikipedia』 (2011/07/10 02:51 UTC 版)
英語による解説
ウィキペディア英語版からの引用
引用
A magnetic field is a field produced by moving electric charges, by electric fields that vary in time, and by the 'intrinsic' magnetic field of elementary particles associated with the spin of the particle. There are two separate but closely related fields to which the name 'magnetic field' can refer: a magnetic B field and a magnetic H field. The magnetic field at any given point is specified by both a direction and a magnitude (or strength); 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.
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Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL). Weblio英和・和英辞典に掲載されている「Wiktionary英語版」の記事は、Wiktionaryのmagnetic field (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。 |
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Text is available under Creative Commons Attribution-ShareAlike (CC-BY-SA) and/or GNU Free Documentation License (GFDL). Weblio英和・和英辞典に掲載されている「Wikipedia英語版」の記事は、WikipediaのMagnetic field (改訂履歴)の記事を複製、再配布したものにあたり、Creative Commons Attribution-ShareAlike (CC-BY-SA)もしくはGNU Free Documentation Licenseというライセンスの下で提供されています。 |
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