Siemens (S) is the standard international unit of conductance, and the old-fashioned unit of conductance is mOhm.Followimaginary numberWhen multiplying, Siemens is also used to indicatealternating currentStreaming (AC) and RF（RF）Susceptibility in application.1 S equals 1 cubic second squaredAmpere per square meterPer kilogram.Siemens is also equal to one ampere per volt.
stayDC circuitWhen the voltage difference between the two ends of an element with a conductivity of 1 S is 1 volt (V), the current it passes through is 1 ampere (A).Therefore, one Siemens is equivalent to one ohm.Mathematically, resistance and conductance are mutuallyreciprocal。
In AC and RF circuits, ifRoot mean square value(rms), conducting Siemens as in DC circuit.In AC and RF circuits, only net capacitance or inductance existsAdmittance。Capacitive admittance has a positive imaginary value, and inductive admittance has a negative imaginary value.The admittance of a particular capacitance or inductance depends on frequency.[1]
The symbol of Siemens isS, abbreviated as[West],oneS=1000mS=1000000μS
Siemens in English.This name is in memory of German engineersWerner von Siemens 。
