Question

A potential difference of v is applied across copper wire of diameter d and length l when d is doubled drigt velocity

Answer 1

Drift velocity also become doubled. Because according to the relation, v=ed .

Answer 2

Answer:

No change when diameter (d) is varied

Explanation:

using formula of drift velocity: v= -eEt/m

Hence as diameter is not related to drift velocity there will be no change in drift velocity.