Question

Define the term drift velocity. how will the Drift velocity be affected if 1) length of conductor is halved 2) potential difference is doubled 3) area of cross section is halved​

Answer 1

Answer:

Drift velocity: Drift velocity is defined as the velocity with which free electrons get drifted towards the positive terminal, when an electric field is applied.

Vd = eEt / m

(Vd = drift velocity)

Explanation:

Vd = eEt / m ( E = V/l )

Vd = eVt / ml

1) Vd is inversely proportional to l (length). So if length of the conductor is halved vd is doubled.

2) Vd is directly proportional to potential difference V. So if V is doubled Vd is also doubled.

3) i = neAVd

Vd = i / neA

Vd is inversely proportional to A. So if area is halved vd is doubled.

If this answer is useful pls do follow me...