Question

derive the relationship between resistivity and mobility (chapt 3)
(Refer NCERT 12 physics vol 1)

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Answer 1

Answer:

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)

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