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clear//
//Variables
ni = 1.41 * 10**16 //intrinsic concentration (in per cubic-metre)
un = 0.145 //mobility of electrons in germanium (in metre-square/volt-second)
up = 0.05 //mobility of holes in germanium (in metre-square/volt-second)
q = 1.6 * 10**-19 //charge of electron (in Coulomb)
//Calculation
sig = q * ni * (un + up) //Conductivity of germanium (in siemen per metre)
//Result
printf("\n Intrinsic conductivity of silicon is %0.3f S/m.",sig)
printf("\n Contribution by electron is %0.3f S/m.",q*ni*un)
printf("\n Contribution by electron is %0.3f S/m.",q*ni*up)
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