// Exa 9.3 clc; clear; close; format('v',5) // Given data N1 = 500; N2 = 40; E1 = 3000;// in V f = 50;// in Hz K = N2/N1; Rating = 25*10^3;// in VA I1 = Rating/E1;// in A disp(I1,"The primary full load current in A is"); I2 = I1/K;// in A disp(I2,"The secondary full load current in A is"); // K = E2/E1; E2 = K*E1;// in V disp(E2,"The secondary emf in V is"); // e.m.f equation of the transformer, E1 = 4.44*phi_m*f*N1; phi_m = E1/(4.44*f*N1);// in Wb phi_m = phi_m*10^3;// in mWb disp(phi_m,"The maximum core flux in mWb is");