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+//calculating induced emf and maximium flux density
+//Chapter 3
+//Example 3.3
+//page 197
+clear;
+clc; 
+disp("Example 3.3")
+V1=230;                //primary voltage in volts
+f=50;                    //frequency in hertz
+N1=100;                  //number of primary turns
+N2=400;                  //number of secondary turns
+A=250*10^(-4);            //cross section area of core in m^2
+disp("since at no-load E2=V2")
+E2=(V1*N2)/N1;
+printf("induced secondary winding,E2=%dV",E2);
+phi=E2/(4.44*f*N2);
+Bm=phi/A;
+printf("\nMaximium flux density in the core=%fWb/m^2",Bm)
+\ No newline at end of file