DIY Electromagnetic Swing STEM Kit - Kids Wooden Toys Science Experiment Technology Electromagnetic Swing STEM Educational Puzzle

Experimental principle:The principle of electromagnetic swing: After the wire is energized, a magnetic field will be generated around the wire. If the wire is wound into a coil, this magnetism will be increased. In this experiment, the copper wire has a layer of insulating film, which produces magnetism after being wound into a coil and energized. The more turns of the coil, the stronger the magnetism. The coil interacts with the permanent magnet below. Due to the characteristics of the magnet, the poles of the same level repel each other and the poles of the different levels attract each other. After the coil is pushed open, one end of the copper wire will be disconnected from the battery box wire and the power will be cut off, and the copper coil will disappear magnetically. Affected by gravity, the copper coil magnetism disappears. When it returns to the lowest point under the influence of gravity, one end of the copper wire will be connected to the lead of the battery box again, an