Question

Define conductivity of a conductor explain the variation of conductivity with temperatire in good condictors and ionic conductiors

Answer 1

conductivity is degree to which a specified material conducts electricity. In case of good conductors conductivity decreases with increase in temp. In case of ionic conductors increase in temp increases conductivity.

Answer 2

Answer:

The reciprocal of resistivity (ρ) of a material is called its conductivity (σ), i.e., With rise of temperature, the collision of electrons with fixed lattice ions/atoms increases so that relaxation time (τ) decreases. Consequently, the conductivity of metals decreases with rise of temperature.