initial commit / add all books

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diff --git a/2375/CH9/EX9.2/ex9_2.sce b/2375/CH9/EX9.2/ex9_2.sce
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+// Exa 9.2

+clc;

+clear;

+close;

+format('v',5)

+// Given data

+bita= 100;

+V_B1= 5;// in V

+V_E1= 4.3;// in V

+R_E1= 4.3*10^3;// in ohm

+V_E2= 3.6;// in V

+R_E2= 3.6*10^3;// in ohm

+R_C=4*10^3;// in ohm

+R_L= 4*10^3;// in ohm

+R1= 100*10^3;// in ohm

+R2= 100*10^3;// in ohm

+gm= 40*10^-3;// in A/V

+re= 25;// in W

+r_pie= 2.5*10^3;// in W

+f_r= 400*10^6;// in Hz

+C_miu= 2*10^-12;// in F

+omega_T= 2*%pi*f_r;// in radian

+Rin= 38*10^3;// in ohm

+R_S= 4*10^3;// in ohm

+R_pie1= 80;//in ohm

+Ve1ByVb1= 0.98;// in V/V

+I_E1= V_E1/R_E1;// in A

+I_E2= V_E2/R_E2;// in A

+// We know, C_pie + C_miu= gm/ometa_T or

+C_Pie= gm/omega_T-C_miu;// in F

+Vb1ByVs= Rin/(Rin+R_S);// in V/V

+//Ve1ByVb1= R_E1*r_pie2/(R_E1*r_pie2)/(R_E1*r_pie2/(R_E1*r_pie2)+r_e1);

+VeByVb1= R_E1*r_pie/(R_E1*r_pie)/(R_E1*r_pie/(R_E1*r_pie)+R_E1);// in V/V

+// The gain of the common-emitter amplifier Q2

+VoByVe1= -gm*R_C*R_L/(R_C+R_L);// in V/V

+// The overall gain

+VoByVs= Vb1ByVs*Ve1ByVb1*VoByVe1;// in V/V

+RdeshS= R1*R2*R_S/(R1*R2+R2*R_S+R_S*R1);

+RdeshE1= R_E1*r_pie/(R_E1+r_pie);// in k ohm

+R_miu1= R_S*Rin/(R_S+Rin)*10^-3;// in k ohm

+R_pi1= (r_pie*(RdeshS+RdeshE1)/(1+gm*RdeshE1))/r_pie+(RdeshS+RdeshE1)/(1+gm*RdeshE1);

+R_T=round( RdeshE1*(r_pie+RdeshS)/(bita+1)/(RdeshE1+(r_pie+RdeshS)/(bita+1)));// in ohm

+disp(VoByVs,"The overall voltage gain in V/V is : ")

+disp(R_miu1,"The value of R_miu1 in ohm is : ")

+disp(R_pie1,"The value of R_pie1 in ohm is : ")

+disp(R_T,"The value of R_T in ohm is : ")

diff --git a/2375/CH9/EX9.3/ex9_3.sce b/2375/CH9/EX9.3/ex9_3.sce
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index 000000000..03c2b9700
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+++ b/2375/CH9/EX9.3/ex9_3.sce
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+// Exa 9.3

+clc;

+clear;

+close;

+format('v',5)

+// Given data

+wH= '0.9*wp1';

+wp2='wp1*k';

+//wH= 1/sqrt(1/wp1^1+1/(k*wp1)^2)

+k= sqrt(0.9^2/(1-0.9^2));

+disp(k,"The value of k is : ")

+

diff --git a/2375/CH9/EX9.4/ex9_4.sce b/2375/CH9/EX9.4/ex9_4.sce
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index 000000000..7aaca61cf
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+++ b/2375/CH9/EX9.4/ex9_4.sce
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+// Exa 9.4

+clc;

+clear;

+close;

+// Given data

+Rs = 1;// in k ohm

+Rs = Rs * 10^3;// in ohm

+omega_z = 10;// in rad/sec

+omega_p = 100;// in rad/sec

+//omega_z = 1/(Rs*Cs);

+Cs = 1/(Rs*omega_z);// in F

+disp(Cs*10^6,"The value of Cs in µF is");

+//omega_p = (g_m + (1/Rs))/Cs;

+g_m = omega_p*Cs-1/Rs;// in A/V

+g_m= g_m*10^3;// in mA/V

+disp(g_m,"The value of g_m in mA/V is")

+

+// Note: The unit of g_m in the book is wrong. It will be in mA/V not in nA/V.