easy one

no

is it straight or multiple correct?

multiple crrct however the ans is a single option

oh sorry answer is b then ?

d ?

ya sky u r right cud u explain the thing

a) drift speed depends upon average collision time... which decrease with inc in temp.

b) resistivity decreases.

c) so does resistance.. (decreaess in a conductor)

R = R_O[1-kΔt] and R=ρl/A

d) no of free electrons in a conductor will remain same with rise in temp. only the no of collisions between them increase.

@sky resistance n resistivity increases on increasing temp in conductor