Definition
For a conducting or semiconducting element with electrical resistance R, the conductance G, is defined as
where I is the electric current through the object and V is the voltage (electrical potential difference) across the object.
The unit siemens for the conductance G is defined by
where Ω is the ohm, A is the ampere, and V is the volt.
For a device with a conductance of one siemens, the electric current through the device will increase by one ampere for every increase of one volt of electric potential difference across the device.
The conductance of a resistor with a resistance of five ohms, for example, is (5 Ω)−1, which is equal to 200 mS.
Read more about this topic: Siemens (unit)
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