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+
+
+//To Calculate the Resistivity of n type semiconductor
+
+//Example 45.2
+
+clear;
+
+clc;
+
+e=1.6*10^-19;//charge on an electron in Coloumbs
+
+ne=8*10^19;//Density of Conduction Electron per metre^3
+
+ue=2.3;//Mobility of Conduction Electron in m^2/V-s
+
+nh=5*10^18;//Density of holes per metre^3
+
+uh=10^-2;//Mobility of holes per m^2/V-s
+
+c=e*((ne*ue)+(nh*uh));//Conductivity of the Semiconductor in C/(m-V-s)
+
+rho=1/c;//Resistivity of Semiconductor in ohm-metre
+
+printf("Resistivity of the n-type semiconductor = %.3f ohm-m",rho);//The answer provided in the textbook is wrong