expression related to specific conductivity
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It is measured in ohm-1 = mho = Siemens. If A = 1 cm2 and l = 1 cm, then κ = G. Therefore the specific conductance can be defined as: specific conductance or conductivity (κ): It is the conductance of a material or solution between two electrodes of cross sectional area 1 cm2 and separated by 1 cm distance.
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Resistivity, commonly symbolized by the Greek letter rho, ρ, is quantitatively equal to the resistance R of a specimen such as a wire, multiplied by its cross-sectional area A, and divided by its length l; ρ = RA/l. ... If lengths are measured in centimetres, resistivity may be expressed in units of ohm-centimetre.
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