w = 0.01;
w1 = w*10^-3
t = 10^-3;
L = 0.5;
B = 10*10^-5; 
I = 10^-3;
Vab = -2 *10^-3;
Vcd = 0.1; 
q = 1.6*10^-19;
q1 = q*10^-3
n0 = I*B/(q1*-Vab);
rho = (Vcd/I)/(L/w1);
u = 1/(rho*q*n0);
disp(n0,"electron concentration (in per cubic centimeter)=")
disp(rho,"resisitivity (in ohm-cm)=")
disp(u,"mobility (in square cm per volt-sec)=")