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//Chapter 12 : Semiconductor Physics
clear;
//Variable declaration
myun=0.39 //mobility of electrons
myup=0.21 //mobility of holes
ni=2.5*10**19 //intrinsic concentration
e=1.6*10**-19
//Calculations
sigmai=ni*e*(myun+myup) //conductivity of intrinsic semiconductor
rhoi=1/sigmai
//Result
mprintf("Conductivity = %.1f ohm**-1-m**-1",sigmai)
mprintf("\nResistivity= %.2f ohm-m",rhoi)
//The answer provided in the textbook is wrong
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