翻訳と辞書 Words near each other ・ Magnetic Skyline ・ Magnetic skyrmion ・ Magnetic Soccer ・ Magnetic South ・ Magnetic South (album) ・ Magnetic spin vortex disc ・ Magnetic Springs, Indiana ・ Magnetic Springs, Ohio ・ Magnetic starter ・ Magnetic stirrer ・ Magnetic storage ・ Magnetic storm (disambiguation) ・ Magnetic stripe card ・ Magnetic structure ・ Magnetic survey (archaeology) ・ Magnetic susceptibility ・ Magnetic switch ・ Magnetic tape ・ Magnetic tape data storage ・ Magnetic tension force ・ Magnetic Tower of Hanoi ・ Magnetic translation ・ Magnetic trap ・ Magnetic trap (atoms) ・ Magnetic tweezers ・ Magnetic Video ・ Magnetic water treatment ・ Magnetic weapon ・ Magnetic-activated cell sorting ・ Magnetic-coded lock Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Magnetic susceptibility ： ウィキペディア英語版 Magnetic susceptibility In electromagnetism, the magnetic susceptibility $\backslash chi$ 〔latin: ''susceptibilis'' “receptive”〕 is one measure of the magnetic properties of a material. The susceptibility indicates whether a material is attracted into or repelled out of a magnetic field, which in turn has implications for practical applications. Quantitative measures of the magnetic susceptibility also provide insights into the structure of a materials, providing insight into bonding and energy levels. ==Definition of volume susceptibility== ::''See also '' Relative permeability. Magnetic susceptibility is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field. A related term is magnetizability, the proportion between magnetic moment and magnetic flux density. A closely related parameter is the permeability, which expresses the total magnetization of material and volume. The ''volume magnetic susceptibility'', represented by the symbol $\backslash chi\_v$ (often simply $\backslash chi$, sometimes $\backslash chi\_m$ – magnetic, to distinguish from the electric susceptibility), is defined in the International System of Units — in other systems there may be additional constants — by the following relationship: :$$ \mathbf = \chi_v \mathbf. Here :M is the magnetization of the material (the magnetic dipole moment per unit volume), measured in amperes per meter, and :H is the magnetic field strength, also measured in amperes per meter. $\backslash chi\_v$ is therefore a dimensionless quantity. Using SI units, the magnetic induction B is related to H by the relationship :$$ \mathbf \ = \ \mu_0(\mathbf + \mathbf) \ = \ \mu_0(1+\chi_v) \mathbf \ = \ \mu \mathbf where μ0 is the magnetic constant (see table of physical constants), and $(1+\backslash chi\_v)$ is the relative permeability of the material. Thus the ''volume magnetic susceptibility'' $\backslash chi\_v$ and the magnetic permeability $\backslash mu$ are related by the following formula: :$\backslash mu\; =\; \backslash mu\_0(1+\backslash chi\_v)\backslash ,$ . Sometimes an auxiliary quantity called ''intensity of magnetization'' (also referred to as ''magnetic polarisation'' J) and measured in teslas, is defined as :$\backslash mathbf\; =\; \backslash mu\_0\; \backslash mathbf\; \backslash ,$ . This allows an alternative description of all magnetization phenomena in terms of the quantities I and B, as opposed to the commonly used M and H. Note that these definitions are according to SI conventions. However, many tables of magnetic susceptibility give CGS values (more specifically emu-cgs, short for electromagnetic units, or Gaussian-cgs; both are the same in this context). These units rely on a different definition of the permeability of free space: :$$ \mathbf^^^^^}=4\pi\chi_v^{\text{cgs}} For example, the CGS volume magnetic susceptibility of water at 20 °C is −7.19×10−7 which is −9.04×10−6 using the SI convention. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Magnetic susceptibility」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.