Magics Crystal Growing Kit Decoration Glass Crystal Science Experiments Puzzle And Stress Relief Kids Toy Educational Stimula USD 7.86 / piece /lot 1

DIY Technology Small Production Eight Planets Solar System Cosmic Model Celestial Instrument Teaching Aids Science Zone Material USD 2.29 / piece /lot 1

Science experiment electromagnetic Induction power train children's science and technology STEM Scientific maglev train teaching USD 8.77 / piece /lot 1

Wooden Hydraulic Excavator Model Children's Educational Toys Wooden Handmade DIY Scientific Experiment Parent-child Interaction USD 8.41 / piece /lot 1

Electromagnetic Experiment with Space Separation and Electricity Extraction DIY Technology Elementary School Electrical Science

working principle

Energy can be effectively transmitted between two objects with the same resonance frequency, while the interaction between objects with different frequencies is weak

Schematic diagram of wireless charger

By coupling energy through two inductive coils, the current output by the secondary coil is converted into direct current through the receiving and converting circuit to supply power to the LED lamp

Wireless charging technology utilizes magnetic resonance to transmit electrical energy in the electric and magnetic fields between the charger and the device, while coils and capacitors form resonance between the charger and the device.

Notes:

Please allow 1-2cm error due to manual measurement.

Due to the difference between different monitors, the picture may not reflect the actual color of the item, hope you can understand.