Question

Defined electrical conductivity and express in termsof charge ,mass number,density and relaxation time

Answer 1

Define ::: the rate at which heat passes through a specified material, expressed as the amount of heat that flows per unit time through a unit area with a temperature gradient of one degree per unit distance.

In terms of charge:::;Electrical conductivity.Electrical conductivity isthe measure of a material's ability to allow thetransport of an electric charge. Its SI is thesiemens per meter, (A2s3m−3kg−1) (named after Werner von Siemens) or, more simply, Sm−1. It isthe ratio of the current density to the electric field strength.

It should be noted that Eq.6.4 is an expression of Ohm's law. The unit for the electrical conductivity is Siemens per cm, Scm-1 (one Siemens is thereciprocal of one ohm andin older literature the electrical conductivity is expressed as ohm-1cm-1).

Conduction electron density and atoms per volume, help with equations [closed] ... The conduction electron density is n = Z v ρ m / M , where is the atomic mass in kilgrams per atom and is the density of the solid in kg m − 3 . Every atoms contributes conduction electrons.