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//Chapter 12 : Semiconductor Physics
clear;
//Variable declaration
ni=2.5*10**19 //intrinsic concentration
myun=0.40 //mobility of electrons
myup=0.25 //mobility of holes
e=1.6*10**-19
//Calculations
sigmai=ni*e*(myun+myup) //conductivity of intrinsic semiconductor
rhoi=1/sigmai
//Result
mprintf("Resistivity = %f ohm-m",rhoi)
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