Set the two magnets and the gap between them. The LeviPen on the left floats as Magnet 1, hovering above Magnet 2 — watch it settle to a new height as you change the gap.
Two-magnet force simulator
1 Magnet 1 = the LeviPen
Grade
Br (Gauss)
G
Shape
Diameter
mm
Thickness
mm
Width
mm
2 Magnet 2 = the base magnet
Grade
Br (Gauss)
G
Shape
Diameter
mm
Thickness
mm
Width
mm
Gap between facing poles
The magnets are always anti-aligned (attracting): Magnet 1's N pole faces Magnet 2's S pole. Flipping one to repel gives the same force, just reversed.
10.0 mm
Model accuracy—
A magnet is large relative to this gap — the simple model is unreliable here. Measure directly.
Force on Magnet 1
—
newtons
Force on Magnet 2
—
newtons
The two forces are equal in size and opposite in direction (Newton's third law) — even if one magnet is much stronger than the other.