Question

Deduce the relation between drift velocity and electric current.​

Answer 1

Answer:

The relation between drift velocity and current is given by the following equation

I=n*e*A*Vd

where n= number of free electrons per unit volume

e= electric charge

A= Area of cross-section

Vd= Drift Velocity

I= Electric Current

Explanation:

L=length of Conductor

e= electric charge

A= Area of cross-section

Vd= Drift Velocity

I= Electric Current

Volume= A*L

Total number of electrons in the conductor= nAL

Charge on electrons is given by

Q=nALe

If the potential V is applies across the conductor

E=V/I

t=L/Vd

I=Q/t

I=nALe/L/Vd

Hence

I= nALVd

Hence this is the required relation

Answer 2

Answer:

this is the required answer