5H20.10 - Magnet on a Pivot
To demonstrate the rotation of a magnet on a pivot to align with the opposite poles of another magnet
1. Place the pivoted magnet on the transparent plate and balance it.
2. Slowly bring the second magnet from below the plate with the poles pointing in the same direction as the first.
The magnet on the pivot spins so as to align with the opposite poles of the second stationary magnet.