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+//b
+mu0 = 4*%pi*10^-7 ;
+//plunger magnet dimensions (in meters)
+x = 0.025;
+h = 0.05;
+a = 0.025;
+g = 0.00125;
+
+mmf = 1414; //(in At)
+
+F = %pi*a*mu0*(mmf^2)*(h^2)*(1/(x + h)^2)/g; //magnitude of the force
+disp(F, "magnitude of the force (in Newtons) = ") \ No newline at end of file