The absiemens (symbolized abS) is the unit of conductance in the cgs (centimeter/gram/second) electromagnetic system of units. It is equivalent to 10 9 siemens (S).
When a current of one abampere (1 abA) flows through a conductance of 1 abS, the resulting potential difference across the component is one abvolt (1 abV). If the conductance is doubled while the current remains the same, the resulting voltage across the component is cut in half. Conversely, if the conductance is cut in half while the current remains the same, the resulting voltage across the component is doubled. The conductance in absiemens is the reciprocal of the resistance in abohms (ab W).
The absiemens is an extremely large unit of conductance. In fact, an object with a conductance of 1 abS would make an excellent electrical conductor. In practical applications, the siemens, the millisiemens (mS) and the microsiemens (µS)are most often used to quantify conductance. For comparison, 1 abS = 10 15 µS = 10 12 mS. The siemens is the standard unit of conductance in the International System of Units (SI).