Electromagnetic Power Battery Train Maglev Train Toy School Science Physics Experiment Technology Children's Teaching Gift

Principle: the coil is energized to generate a magnetic field, and the same sex repels each other. When the magnets adsorbed on both ends of the battery enter the coil, a magnetic field is generated in the coil, which attracts and repels with the electromagnet, and the battery can move quickly.

Power source: AAA battery (not included)

One order for one set

Material: Metal + Magnet parts

Package included:1 coil, 4 magnets

Due to manual measurement, there may be an error of 0-2cm. Please understand