magnetomotive force

　

WordNet

1. the force that produces magnetic flux
2. a unit of measurement of magnetomotive force
3. do forcibly; exert force; "Dont force it!"
4. (physics) the influence that produces a change in a physical quantity; "force equals mass times acceleration"
5. physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man" (同)forcefulness, strength
6. group of people willing to obey orders; "a public force is necessary to give security to the rights of citizens" (同)personnel
7. a group of people having the power of effective action; "he joined forces with a band of adventurers"
8. a powerful effect or influence; "the force of his eloquence easily persuaded them"
9. force into or from an action or state, either physically or metaphorically; "She rammed her mind into focus"; "He drives me mad" (同)drive, ram
10. impose urgently, importunately, or inexorably; "She forced her diet fads on him" (同)thrust
11. produced by or subjected to forcing; "forced-air heating"; "furnaces of the forced-convection type"; "forced convection in plasma generators"
12. forced or compelled; "promised to abolish forced labor"
13. made necessary by an unexpected situation or emergency; "a forced landing"

PrepTutorEJDIC

1. 〈U〉(物理的な)『力』,勢い;体力 / 〈U〉『暴力』,腕ずく / 〈C〉《集合的に》(共通の目的・活動のための)集団,隊 / 〈C〉《しばしば複数形で》『軍隊』,部隊 / 〈C〉(社会的)勢力;有力な人物 / 〈U〉(精神あるいは知性の)力 / 〈U〉『影響力』,効果 / 〈U〉(言葉の)意味,真意 / 〈人〉‘に'『強いる』,無理を言う / (…から)…‘を'力ずくで手に入れる《+『名』+『from』(『out of』)+『名』》 / …‘を'むりに押し出す / (容器などに)…‘を'むりに押し込む《+『名』+『into』+『名』》 / (人に)…‘を'『押しつける』《+『名』+『on』(『upon』)+『名』〈人〉》 / 〈植物〉‘を'促成栽培する
2. 《時間・距離》『…の間』 / 《利益・貢献》『…のために』 / 《適応・用途》『…向きの(に);』…用の(に);…のための(に) / 《目的・意向》『…のために,』に / 《敬意・記念》『…のために;』…を記念して / 《獲得・追求》『…を得るために』,を求めて / 《行く先・方向》『…あてに;』…[方面]行きの,に向けて / 《交換・報償など》『…に対して』;…と引き換えに;…のお返しに / 《原因・理由》『…のために』,なので / 《代理・代表》『…の代わりに;』…を代表して / 《形容詞の後に用いて》『…にとって,』には / 《比較級の後に用いて》『…の結果として,』…のために / 《対比》『…としては,』のわりには / 《関連》『…について,』の点では / 《資格・属性》『…として』 / 《賛成・支持》…『に賛成して』,を支持して / 《傾向・好み》…『に対する』,には / 《模倣》《おもに米》《英文》…の名を取って(after) / 《割合》…に対して / 《『for』+『名』〈人〉+『to』 doの形で,〈人〉が不定詞to doの意味上の主語を表して》…が(…することは,…するために) / […というのは]…だから
3. 強いられた,強制的な / 強いて作った,不自然な

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/26 17:42:03」(JST)

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Part of a series on
Magnetic circuits
Conventional magnetic circuits
Magnetomotive force Magnetic flux Magnetic reluctance
Phasor magnetic circuits
Complex reluctance
Related concepts
Magnetic permeability
Gyrator-capacitor model variables
Magnetic impedance Effective resistance Magnetic inductivity Magnetic capacitivity
Physics portal

In physics, the magnetomotive force is a quantity appearing in the equation for the magnetic flux in a magnetic circuit, sometimes known as Hopkinson's law:

where Φ is the magnetic flux and R is the reluctance of the circuit. It can be seen that the magnetomotive force plays a role in this equation analogous to the voltage V in Ohm's law: V = IR.

Magnetomotive force is analogous to electromotive force, emf (= difference in electric potential, or voltage, between the terminals of a source of electricity, e.g., a battery from which no current is being drawn) since it is the cause of magnetic flux in a magnetic circuit:

1. ℱ = NI

   where N is the number of turns in the coil and

   I is the electric current through the circuit

2. ℱ = ΦR

   where Φ is the magnetic flux and

   R is the reluctance

3. ℱ = HL

   where H is the magnetizing force (the strength of the magnetizing field) and

   L is the mean length of a solenoid or the circumference of a toroid

Notes

References

• The Penguin Dictionary of Physics, 1977, ISBN 0-14-051071-0
• A textbook of Electrical Technology, 2008, ISBN 81-219-2440-5
• Smith, R.J. (1966), Circuits, Devices and Systems, Chapter 15, Wiley International Edition, New York. Library of Congress Catalog Card No. 66-17612

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English Journal

• Magneto acoustic tomography with short pulsed magnetic field for in-vivo imaging of magnetic iron oxide nanoparticles.

• Mariappan L1, Shao Q1, Jiang C2, Yu K1, Ashkenazi S1, Bischof JC3, He B4.
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• A hybrid transducer to evaluate stomach emptying by ultrasound and susceptometric measurements: an in vivo feasibility study.

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Japanese Journal

• Selective Elimination of EMF Harmonics with Stepped Skewing for Ripple Torque Reduction in Surface-Mounted Permanent Magnet Motors

• Yokoi Yuichi,Higuchi Tsuyoshi
• IEEJ Journal of Industry Applications 3(6), 463-469, 2014
• … This paper proposes a design method for stepped skewing of rotor magnets to selectively eliminate the harmonics of the no-load electromotive force (EMF) and the ripple torque, which is generated by the interaction of the stator current magnetomotive force with the rotor magnet flux distribution. …
• NAID 130004708922

• 二巻線方式を用いた複合起磁力モータに関する検討

• 土方 大樹,茂田 智秋,刈谷 暢孝,赤津 観,加藤 崇
• 電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 133(10), 986-994, 2013-10-01
• NAID 10031200996

• 二巻線方式を用いた複合起磁力モータに関する検討

• 土方 大樹,茂田 智秋,刈谷 暢孝 [他]
• 電気学会論文誌. D, 産業応用部門誌 = IEEJ transactions on industry applications 133(10), 986-994, 2013-10
• NAID 40019835915

Related Links

• Magnetomotive-force | Define Magnetomotive-force at ...

Magnetomotive-force definition, a scalar quantity that is a measure of the sources of magnetic flux in a magnetic circuit. See more. Thesaurus Translator Reference Word of the Day Blog Slideshows Apps by Dictionary My Account ...

• magnetomotive force - definition of magnetomotive force by ...

mag·ne·to·mo·tive force (măg-nē′tō-mō′tĭv) n. Abbr. mmf The work that would be required to carry a hypothetical isolated magnetic pole of unit strength completely around a magnetic circuit. magnetomotive force n 1. (General ...

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★リンクテーブル★

関連記事	「force」「forced」

「force」

　　[★]

• n.

• 力

• v.

• 強制する

関

constrain、constraint、energy、enforce、enforcement、power、pressure、strength

　 　 　 　 　 　 　 　 　

「forced」

　　[★]

• adj.

• 強制的な

関

compulsorily、compulsory、forcedly、imperative