Question

how to derive expression for conductivity​

Answer 1

Answer:

Hello mate..

Explanation:

Derive an expression for conductivity in terms of mobility

μe = vd / E = e E t /m E = e t / m

We have derived the relation of resistance previously. (check your other answer)

R = m L / ne2 A t

From this we know

Resistivity ρ = m / ne2 t

And

Conductivty

σ = ne2 t/m = ne (et/m)

4.2