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+// Example 10.5

+format('v',6)

+clc;

+clear;

+close;

+// given data

+V_E= 1.43;// in V

+R_E= 100;// in Ω

+R_L= 100;// in Ω

+R_C= 1*10^3;// in Ω

+bita= 200;

+Vt= 25*10^-3;// in V

+I_E= V_E/R_E;// in A

+I_CQ= I_E;// in A

+Zin= bita*R_L;// in Ω

+r_desh_e= Vt/I_CQ;// in Ω

+// The voltage gain of the driver stage 

+A= (R_C*Zin/(R_C+Zin))/(R_E+r_desh_e);

+disp(A,"The voltage gain of the driver stage is : ")

+// On ignoring Zin and r_desh_e,

+A= R_C/R_E;

+disp(A,"On ignoring the value of Zin and r''e, the voltage gain is : ")