When an electrical potential difference is placed across a conductor, its movable charges flow, giving rise to an electric current.
Definition of conductivityEdit
Conductivity is the reciprocal (inverse) of electrical resistivity and has the SI units of siemens per metre. Electrical conductivity is commonly represented by the Greek letter σ, but κ or γ are also occasionally used.
Classification of materials by conductivity is also done.
|This page uses Creative Commons Licensed content from Wikipedia (view authors).|