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clear
//
//
//
//Variable declaration
D=8.92*10**3 //density(kg/m**3)
rho=1.73*10**-8 //resistivity(ohm m)
W=63.5 //atomic weight
Na=6.02*10**26 //avagadro number
e=1.6*10**-19 //charge(c)
//Calculation
n=D*Na/W
mew=1/(rho*n*e) //mobility(m**2/Vs)
//Result
printf("\n mobility is %0.5f m**2/Vs",mew)
printf("\n answer given in the book is wrong")
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