Question

using an expression for drift velocity, show that the mobility of free electron is directly proportional to its relaxation time .​

Answer 1

Answer:

ANSWER

Drift velocity per unit electric field is called mobility of electron, i.e., μ=

E

V

d

=

ρneE

E

Now, ρ=

ne

2

τ

m

∴μ=

mne

ne

2

τ

=

m

eτ

Answer 2

Answer:

observe carefully the differences in the minutes