The solution of the problem 4.80 кр 4 from the problem

The solution of the problem 4.80 кр 4 from the problem

Task 4.80
Determine the impurity electrical conductivity of silicon containing boron with a concentration of 2 • 1022 m-3 and
Antimony with a concentration of 3 • 1021 m-3. The mobility of electrons and holes for silicon is, respectively,
0.13 and 0.05 m2 / (B · s).