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series and parallel circuits
the remote control main body accessories board
and help children experience the theory of power
The mechanical butterfly is a very interesting kit
Differential pairs routing
DIY Electromagnetic Swing STEM Kit - Kids Wooden Toys Science Experiment Technology Electromagnetic Swing STEM Educational Puzzle science series and parallel circuitsExperimental 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
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