GAL: Gradient Adaptive Lattice: GAL: Guggenheim Aeronautical Laboratory: GAL: Gas Analysis Laboratory: GAL: George A. Lincoln (WWII General) Gal: Galindian (linguistics) GAL: Guinea Airways, Ltd. GAL: Groupe Antiterroristes de LibÃ©ration (French: Anti-Terrorist Liberation Group) GAL: Gathering Arm Loader (mining) GAL: Graphics Adapter Language: GAL: Gimbal Angle Loss: GAL
1 If the distance between two magnets is doubled the magnetic force between them will fall to a quarter of the initial value. #(F//4)#.  If the distance between two magnets is halved the magnetic force between them will increase to four times the initial value. #(4F)#.
In the formula above, x is the separation between the two magnets and L is the length of the magnets. The first one, with 1/x^2 shows the force of attraction between the two closest opposite poles. The second one, 1/(x + 2L)^2 is the attraction force between the furthest opposite poles. Finally, the repulsion force must be removed which is shown by - 2/(x + L)^2.