Electric current flow through a substance is characterized by its conductance.
Electrical conductance measures how easily electricity flows through electrical components for a given voltage difference.
Conductance is denoted by .
A system's capacity to conduct electricity is determined by the relationship between the current flowing through it and the potential difference across it i.e. . It is the inverse or reciprocal of Resistance i.e.
The SI unit of conductance is Siemen or also denoted as