//Exa 2.14 clc; clear; close; //given data e=1.6*10^-19;//in coulamb resistivity=9*10^-3;//in ohm-m RH=3.6*10^-4;//in m^3-coulamb^-1 SIGMA=1/resistivity;//in (ohm-m)^-1 rho=1/RH;//in cooulamb/m^3 n=rho/e;//in m^-3 disp(n,"Density of charge carriers in m^-3 : "); MU=SIGMA*RH;//in m^2/V-s disp(MU,"Mobility in m^2/V-s : ");