Electrical conductance is an electrical phenomenon where a material contains movable particles with electric charge, which can carry electricity. When a difference of electrical potential is placed across a conductor, its movable charges flow, and an electric current appears.

The SI unit of electrical conductance is the siemens, (named after Werner von Siemens)

SI electricity units

SI electromagnetism units edit  (http://www.wordiq.com/definition/Template:SI_electromagnetism_units)
Name	Symbol	Dimensions	Quantity
ampere (SI base unit)	A	A	Current
coulomb	C	A·s	Electric charge, Quantity of electricity
volt	V	J/C = kg·m2·s−3·A−1	Potential difference
ohm	Ω	V/A = kg·m2·s−3·A−2	Resistance, Impedance, Reactance
ohm metre	Ω·m	kg·m3·s−3·A−2	Resistivity
farad	F	C/V = kg−1·m−2·A2·s4	Capacitance
farad per metre	F/m	kg−1·m−3·A2·s4	Permittivity
reciprocal farad	F−1	kg1·m2·A−2·s−4	Elastance
siemens	S	Ω−1 = kg−1·m−2·s3·A2	Conductance, Admittance, Susceptance
siemens per metre	S/m	kg−1·m−3·s3·A2	Conductivity
weber	Wb	V·s = kg·m2·s−2·A−1	Magnetic flux
tesla	T	Wb/m2 = kg·s−2·A−1	Magnetic flux density
ampere per metre	A/m	m−1·A	magnetic induction
ampere-turns per weber	A/Wb	kg−1·m−2·s2·A2	Reluctance
henry	H	V·s/A = kg·m2·s−2·A−2	Inductance
henry per metre	H/m	kg·m·s−2·A−2	Permeability
(dimensionless)	-	-	Magnetic susceptibility

See also

• electrical conduction

External links