Question

Show on a graph the variation of resistivity with temperature for a typical

semiconductor .​

Answer 1

Answer:

The resistivity is given by:

ρ=ne2τm

where n = number density of electrons

ρ = relaxation time

With the rise in temperature, number density of electrons and holes (in case of semiconductors) increases, where τ remains constant. So, ρ (resistivity) decreases.