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The rmks system (rationalized metre–kilogram–second) combines MKS with rationalization of electromagnetic equations. The MKS units with the ampere as a fourth base unit is sometimes referred to as the MKSA system. This system was extended by adding the kelvin and candela as base units in 1960, thus forming the International System of Units.
The fourth unit could be chosen to be electric current, voltage, or electrical resistance. [35] Electric current with named unit 'ampere' was chosen as the base unit, and the other electrical quantities derived from it according to the laws of physics. When combined with the MKS the new system, known as MKSA, was approved in 1946. [4]
The ampere-turn (symbol A⋅t) is the MKS (metre–kilogram–second) unit of magnetomotive force (MMF), represented by a direct current of one ampere flowing in a single-turn loop. [1] Turns refers to the winding number of an electrical conductor composing an electromagnetic coil .
Internationally used abbreviations of the system are MKpS, MKfS or MKS (from French mètre–kilogramme-poids–seconde or mètre–kilogramme-force–seconde). [1] However, the abbreviation MKS is also used for the MKS system of units , which, like the SI, uses mass in kilogram as a base unit.
MKS may refer to: MKS (Switzerland), a broker of precious metals; MKS Inc., a software vendor (formerly Mortice Kern Systems) MKS Instruments, an American process control instrumentation company; MKS system of units of measurement based on the metre, kilogram, and second; M. K. Stalin, an Indian politician and current Chief Minister of Tamil Nadu
The statohm is a unit of electric resistance equal to 1 statV/statA, corresponding to ~ 898.755 1787 GΩ. The statsiemens or statmho is a unit of electric conductance equal to 1 statA/statV, corresponding to ~ 1.112 646 pS. [6] The stathenry is a unit of electric inductance equal to 1 statV·s/statA, corresponding to ~ 898.755 1787 GH. [7] [6] [a]
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The units of the first two quantities are the ampere and the ampere per centimetre respectively. The unit of magnetic permeability is that of the emu system, and the magnetic constitutive equations are B = (4 π /10)μH and B = (4 π /10)μ 0 H + μ 0 M. Magnetic reluctance is given a hybrid unit to ensure the validity of Ohm's law for magnetic ...