The solution of the problem 4.78 кр 4 from the problem

The solution of the problem 4.78 кр 4 from the problem

Task 4.78
Determine the impurity electrical conductivity of a diamond containing indium at a concentration of 5 × 1021 m-3 and
Antimony with a concentration of 2 • 1021 m-3. The mobility of electrons and holes for a diamond is, respectively,
0.18 and 0.12 m2 / (B · s).