// Exa 5.11.1(a) clc; clear; close; // Given data beta_dc = 90; I_C = 15;// in mA I_C = I_C * 10^-3;// in A I_B = I_C/beta_dc;// in A disp(I_B*10^6,"The base current in µA is"); I_E = I_C + I_B;// in A I_E = I_E * 10^3;// in mA disp(I_E,"The Emitter current in mA is"); alpha_dc = beta_dc/(1+beta_dc); disp(alpha_dc,"The value of alpha_dc is");