initial commit / add all books

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+// Exa 4.4

+clc;

+clear;

+close;

+format('v',7)

+// Given data

+I_B = 45;// in µA

+I_B = I_B * 10^-6;// in A

+I_C = 5.45;// in mA

+I_C = I_C * 10^-3;// in A

+I_E = I_B+I_C;// in A

+I_E= I_E*10^3;// in mA

+disp(I_E,"The value of I_E in mA is");

+I_E= I_E*10^-3;// in A

+Alpha = I_C/I_E;// unit less

+disp(Alpha,"The value of Alpha is");

+format('v',5)

+Beta = I_C/I_B;// unit less

+disp(Beta,"The value of Beta is");

+I_C = 10;// in mA

+I_C = I_C * 10^-3;// in A

+I_B = I_C/Beta;// in A

+I_B = I_B * 10^6;// in µA

+disp(I_B,"The required base current in µA is");