What is specific conductance or conductivity?

1.	What is specific conductance or conductivity?
Answer» The reciprocal of specific resistance or resistivity is called specific conductance or conductivity. If ρ is the resistivity then, conductivity = \(\frac{1}{resistivity}\) = \(\frac{1}{ρ}\) Conductivity is denoted by κ (kappa), where κ = \(\frac{1}{ρ}\) It is the conductance of a conductor that is 1m in length and 1m² in cross section area in SI units. (In C.G.S. units, it is the resistance of a conductor that is 1 cm in length and 1 cm² in cross section area.) It is the conductance of a conductor of volume 1m³ (or in C.G.S. units, the volume of 1 cm³).

Answer»

The reciprocal of specific resistance or resistivity is called specific conductance or conductivity.

If ρ is the resistivity then,

conductivity = \(\frac{1}{resistivity}\) = \(\frac{1}{ρ}\)

Conductivity is denoted by κ (kappa), where κ = \(\frac{1}{ρ}\)

It is the conductance of a conductor that is 1m in length and 1m² in cross section area in SI units.

(In C.G.S. units, it is the resistance of a conductor that is 1 cm in length and 1 cm² in cross section area.)

It is the conductance of a conductor of volume 1m³

(or in C.G.S. units, the volume of 1 cm³).

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