Magnetic Field Visualizer

Dimensions 5*5cm, laminate – 66*96mm: A plate that changes color in response to a magnetic field. In a magnetic field, the plate brightens between the poles (apparently where the magnetic field lines are located along its surface). It is a laminated grainy dark green flexible record. The main application is the satisfaction of curiosity. 1.JPG” /> As it turned out, a rare ferrite magnet has poles on both sides – usually their structure is more complicated.
such a magnet is useful for "resetting" the image. Can be useful for discovering hidden magnets in some devices. I still don’t know how it works, so I’m giving pictures of different magnets and the visualizer’s reaction to them. https://jiji.ug/dogs-and-puppies/terrier

Magnetic Field Visualizer