Electrical_conductance Electrical_conductance

Electrical conductance - Definition and Overview
Related Words: Conductivity, Conductor, Dielectric, Insulator, Mho, Nonconductor, Semiconductor, Superconductivity, Superconductor

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:

<math>Y = G + j B<math>

where:

The magnitude of admittance is given by:

<math>\left | Y \right | = \sqrt {G^2 + B^2}<math>

SI 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

External links


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