Question

what is drift velocity?xplan

Answer 1

Drift velocity is the average velocity,that a particle,such as an electron attains in a material due to an electric field.It can also be referred as axial drift velocity

Answer 2

drift velocity is the average velocity that a particle ,such as electron ,attain in a material due to electric field . it also can be referd to as axial drift velocity .an applied electric field will give a random motion a smell net flow velicity in one direction.

in a semiconductor ,Two Main carier scattering mechanism are inoized impurity scattering and lattice scattering .



because the current is propossional to drift vilocity which is resistive material is inturn proportional to magnitude of an external electronics field , homp's law can be explained is

u= qE

where U is drift velocity q is the electron mobility( m2/V.s.)of the material and E is the electronic field ( with unit V/M).