In physics, the magnetomotive force (mmf) $${\displaystyle {\mathcal {F}}}$$ is a quantity appearing in the equation for the magnetic flux in a magnetic circuit, Hopkinson's law. It is the property of certain substances or phenomena that give rise to magnetic fields: See more The SI unit of mmf is the ampere, the same as the unit of current (analogously the units of emf and voltage are both the volt). Informally, and frequently, this unit is stated as the ampere-turn to avoid confusion with … See more The term magnetomotive force was coined by Henry Augustus Rowland in 1880. Rowland intended this to indicate a direct analogy with See more Cited sources • Hon, Giora; Goldstein, Bernard R, "Symmetry and asymmetry in electrodynamics from Rowland to Einstein", Studies in History and Philosophy of Modern Physics, vol. 37, iss. 4, pp. 635–660, Elsevier … See more WebIn 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 …
英語「Magnetomotive force」の意味・使い方・読み方
WebJul 5, 2024 · The Magnetomotive force (MMF) is defined as the work done in moving a unit magnetic pole once around the magnetic circuit. It is a magnetic pressure that tends to … 起磁力（きじりょく,magnetomotive force）は磁気回路に磁束を生じさせる力。動磁力または磁動力ともいう。物理量としては複数の基本量から誘導される組立量の一つである。電気回路の起電力に相当し、一つの磁束線上にある二点間の磁位の差といいかえることもできる。電磁石では鉄心に巻いてあるコイルの巻き回数と、そこに流れる電流（アンペア）の積によって決まり、かつてはMKSA単位系ではアンペア回数(AT)という単位が用いられたことがあるが、現在のSI … اف لب چیست
magnetomotive forceの意味 magnetomotive force読み方、使い …
WebMagnetomotive force. Voltage Students also viewed. Lesson 2: Transformers Operation Principle. 45 terms. stephend13. Transformers. 44 terms. BED1992. tae kim's practice. 31 terms. trshaw42. AC Sys, Lvl 1 - Lesson 4: Making Circuit Calc… 41 terms. SJEvo_84. Recent flashcard sets. media planning hierarchy of effects. 16 terms. Jane_Byun. Ages ... WebMagnetomotive force definition, a scalar quantity that is a measure of the sources of magnetic flux in a magnetic circuit. Abbreviation: mmf See more. WebMagnetomotive force (mmf), Fm = NI ampere-turns (At), where N = number of conductors (or turns) and I = current in amperes. Since ‘turns’ has no units, the SI unit of mmf is the ampere, but to avoid any possible confusion ‘ampere-turns’, (A t) are used in this chapter. 16. Magnetic field strength, or magnetising force. اف مباراه