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+// Exa 5.9
+format('v',9)
+clc;
+clear;
+close;
+// Given data
+h_fe = 100;
+h_ie = 1;// in k ohm
+h_ie = h_ie * 10^3;// in ohm
+vo_by_I= -100*10^3;// in ohm
+vi_by_I= 1100+101*0.1*10^3;// in ohm
+Av= vo_by_I/vi_by_I;
+Av= round(Av);
+Av= abs(Av);
+disp(Av,"The mid-band voltage gain is");
+//Ri =Vi/Ii;
+Ri= vi_by_I;// in ohm
+Ri= Ri*10^-3;// in k ohm
+disp(Ri,"The input impedance in k ohm is");