Siemens (unit of conductance)

The siemens (S) is the unit used to measure electrical conductance, which indicates how easily electricity flows through a material. Conductance is the inverse of resistance; higher conductance means electricity can pass more easily. For example, a high-conductance material like copper allows current to flow with less difficulty, while a low-conductance material like rubber resists electric flow. The siemens quantifies this property, with 1 siemens representing a material that allows one ampere of current to flow when a one-volt voltage is applied across it. It's a standard measure helping engineers understand and compare how conductive different materials are.