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Electrical conductance is the reciprocal of electrical resistance. The SI derived unit of conductance is the siemens (symbol S, equal to 1/Ω).

Electrical conductance should not be confused with electrical conductivity, which is material specific feature and reciprocal of electrical resistivity.

Conductance, G, is related to susceptance, B, and admittance, Y, by the equation:

where

Y is the admittance, measured in siemens

G is the conductance, measured in siemens

B is the susceptance, measured in siemens

The magnitude of admittance is given by:

1 SI units

SI electricity units [ }\|action=edit}} Edit }]
SI Base unit
Name	Symbol	Quantity	Notes
ampere	A	Current
SI Derived units
Name	Symbol	Quantity	Notes
volt	V	Potential difference
ohm	Ω	Resistance, Impedance, Reactance
farad	F	Capacitance
henry	H	Inductance
siemens	S	Conductance, Admittance, Susceptance	=Ω⁻¹
coulomb	C	Electric charge
ohm · metre	Ω · m	Resistivity
siemens per metre	S / m	Conductivity
henry per metre	H /m	Permeability	μ
farad per metre	F / m	Permittivity	ε
reciprocal farad	F⁻¹	Elastance	=F⁻¹

2 External links

Conductance, Susceptance, and Admittance

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