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+// Exa 3.30
+clc;
+clear;
+close;
+// Given data
+V_CC=5;// in V
+V_T= 0.025;// in V
+R_C=7.5*10^3;//in Ω
+I_C= 0.5;// in mA
+I_C= I_C*10^-3;// in A
+I_E=I_C;// (approx) in A
+V_C= V_CC-I_C*R_C;// in V
+disp(V_C,"dc voltage at the collector in volt is : ")
+gm= I_C/V_T;// in A/V
+disp(gm*10^3,"The value of gm in mA/V is : ")
+// v_be= -v_i
+// v_c= -gm*v_be*R_C
+vcbyvi= gm*R_C;// in V/V
+disp(vcbyvi,"The value of vc/vi in V/V is : ")