initial commit / add all books

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diff --git a/2594/CH2/EX2.29/Ex2_29.sce b/2594/CH2/EX2.29/Ex2_29.sce
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+clc

+Nv=7*10^18

+disp("Nv = "+string(Nv)+"cm^-3")//initializing the value of valence band concentration at 300K.

+Nc=4.7*10^17

+disp("Nc = "+string(Nc)+"cm^-3")//initializing the value of conduction band concentration at 300K.

+T1=300

+disp("T = "+string(T1)+"K")//initializing the value of temperature 1.

+T2=450

+disp("T = "+string(T2)+"K")//initializing the value of temperature 2.

+Vt1=0.0259

+disp("Vt1 = "+string(Vt1)+"eV")//initializing the value of thermal voltage at 300K.

+Vt2=0.03881

+disp("Vt2 = "+string(Vt2)+"eV")//initializing the value of thermal voltage at 450K.

+Eg=1.42

+disp("Eg = "+string(Eg)+"eV")//initializing the value of thermal voltage.

+no=(sqrt(Nc*Nv*(exp(-Eg/Vt1))))

+disp("intrinsic concentration at 300K,no=(sqrt(Nc*Nv*(exp(-Eg/Vt1))))= "+string(no))//calculation

+K1=(Nc/((T1)^(3/2)))

+disp("Value of constant,K1=(Nc/((T)^(3/2)))= "+string(K1))//calculation

+k1=(K1*T2^(3/2))

+disp("Value of constant k1 at 450K ,k1=(K1*T2^(3/2))= "+string(k1))//calculation

+K2=(Nv/((T1)^(3/2)))

+disp("Value of constant,K2=(Nv/((T1)^(3/2)))= "+string(K2))//calculation

+k2=(K2*T2^(3/2))

+disp("Value of constant k2 at 450K ,k2=(K2*T2^(3/2))= "+string(k2))//calculation

+K=k1*k2

+disp("Value of constant K,= "+string(K))//calculation

+no1=(sqrt(K*(exp(-Eg/Vt2))))

+disp("intrinsic concentration at 450K,no=(sqrt(K*(exp(-Eg/Vt2))))= "+string(no1)+" cm^3")//calculation

+//this is solved problem 2.17 of chapter 2.

+

+

+