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+// Exa 3.3

+clc;

+clear;

+close;

+format('v',8)

+// Given data

+Eta =628;// in J/m^3

+Bmax = 1.3;// in T

+f = 25;// in Hz

+m = 50;// in kg

+rho = 7.8*10^3;// in kg/m^3

+V = m/rho;// in m^3

+H = round(Eta*(Bmax^1.6)*f*V);// Hystersis loss in J/s

+H = H * 60 *60;// Hystersis loss in J/hour

+disp(H,"The Hystersis loss per hour in J is");

+h = Eta*(Bmax^1.6);// Hystersis loss/m^3/cycle

+// h = x*y*area of B_H loop

+x = 12.5;// in AT/m

+y = 0.1;// in T

+Area = h/(x*y);// in cm^2

+format('v',5)

+disp(Area,"The area of B-H loop in cm^2 is");