// Exa 4.8 clc; clear; close; format('v',6) // Given data I_E = 2;// in mA I_C = 1.97;// in mA I_B = I_E-I_C;// in mA disp(I_B,"The base current in mA is"); I_CO = 12.5;// in µA I_CO = I_CO * 10^-3;// in mA Alpha = (I_C-I_CO)/I_E;// unit less disp(Alpha,"The current gain is");