clc
//Chapter5
//Ex_2
//Given
T=300//in kelvin
k=1.38*10^-23 // in m2 kg s-2 K-1
me=9.1*10^-31 // in Kg
m=0.26*me
Ve=sqrt(3*k*T/m)
disp(Ve,"Mean speed of electrons in conduction band in m/s is")