Attraction of the block magnets
Two rectangular prism shaped permanent magnets are pulled to each other.
Plane-parallel problem of magnetostatics
w=1.5" (38.1 mm) - magnet width;
t=0.25" (6.35 mm) - magnet thickness;
l=0.25" (6.35 mm) - magnet length;
δ=0.5" (12.7 mm) - gap between the magnets.
Calculate the pulling force between two magnets.
To calculate the correct result an integration contour is drawn in the air around one of the magnets.
3.50 N (0.77 lb, 1 lb = 4.54 N)
Download simulation files.