By increasing the temperature , the specific of a conductor and a semiconductor

Options

A. increases for both
B. decrases for both
C. increases, decreases
D. decreases , increases

Answer

C

Explanation

Specific resistance is resistively which is given by
`p = (m)/(ne^(2) tau) `
where `n = no` , of free electron per unit valume
and `tau = `average relacation time
for a conducter with rise in temperatute and `tau `decreases But decreases in `tau` is more dominant than increase in `n` resulting an increase in the value of p
for a semiconducter with rise in temperatute and `tau `increases and `tau` decreases but the increases i `n` more dominant than decrease in `tau` resulting an decrease is the value of p