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// Example 4.1
// Computation for percentage increase in conductivity per degree rise in temperature//
// Page no.87
clc;
clear;
close;
//Given data ;
T=300;
EGO=0.785;//forbidden or bandgap energy of germanium at 0 degree K
k=8.62*10^-5;
//Calculation for increase in conductivity per degree rise in temperature//
conduct_per_temp=(3/(2*T))+(EGO/(2*k*T^2));
//Calculation for percentage increase in conductivity per degree rise in temperature//
P1=conduct_per_temp*100;
//Thus the conductivity of the intrinsic germanium increases by 5.56 percent per degree kelvin rise in temperature//
//Displaying the result in command window
printf('\n Increase in conductivity per degree rise in temperature = %0.4f/degree K',conduct_per_temp);
printf('\n \n percentage increase in conductivity per degree rise in temperature = %0.2f percent',P1);
//Answers are varying due to round off error//
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