Question

Find the time of relaxation between collision and free

path of electrons in copper at room temperature. Given

resistivity of copper = 1.7 x 10-8Ωm, number density

of electrons in copper = 8.5 x 1028m

-3

, charge on

electron = 1.6 x 10-19C , mass of electron = 9.1 x 10-31

kg and drift velocity of free electrons= 1.6 x 10-4

ms

-1

​

Answer 1

Answer:

2.5×10^-14s,

,4.0×10^-8m