Teaching Minds-On Experiments on Electromagnetism in Secondary Schools Permanent magnets Flux detector (needed for multipoles and other mini-experiments)
special paper laminated in this amazing card shows the pole locations
on any magnet. Two magnets may look the same physically but have
radically different magnetization patterns. With this card you can see
how many poles a magnet has, and where they are on the magnet. The card
is ideal for conveying the concept of magnetic fields and poles.