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+//Exa 2.17.6
+clc;
+clear;
+close;
+// Given data
+e = 1.6 * 10^-19;// in C
+n_i = 2 * 10^19;// in /m^3
+Mu_e = 0.36;// in m^2/v.s
+Mu_h = 0.17;// in m^2/v.s
+A = 1 * 10^-4;// in m^2
+V = 2;//in volts
+l = 0.3;// in mm
+l = l * 10^-3;// in m
+E=V/l;// in volt/m
+Sigma = n_i * e * (Mu_e + Mu_h);// in mho/m
+// J = I/A = Sigma * E
+I= Sigma*E*A;
+disp(I,"The current produced in a small germanium plate in amp is");
+
+