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Wireless Charging

Electromagnetism

★Exhibit Content: Wireless charging principle popular science and application experience ★Interaction: Electromechanical interactive demonstration ★Operation: 1. Press the "Principle Demonstration" button, move the phone model left and right, and observe the brightness changes of the LED beads in the phone's induction coil; 2. Press the "Phone Charging" button, place the phone directly above the wireless charging power device, and observe the wireless charging status of the phone. ★Exhibit Description: The exhibit consists of a slide rail, primary coil assembly, secondary coil assembly decorative ring, slide rail support base, etc. When the induction coil is closer, the electromagnetic field is stronger, the transmission efficiency is higher, and the light is brighter. Visitors can understand the practical application of wireless charging by experiencing the wireless charging method of a phone. The main technical means of the exhibit is that the primary coil module (charging coil) is fixed on the tabletop, while the secondary coil module (induction coil) on the other side can move along the guide rail, and can approach or move away from the primary coil. By adjusting the distance between the coils, the change in charging effect can be observed. ★Scientific Principle: Wireless charging is based on the principle of electromagnetic induction. The primary coil is supplied with alternating current to generate a changing magnetic field, and the secondary coil generates an induced current in the changing magnetic field, thereby achieving wireless transmission of electrical energy. The closer the coils are, the stronger the electromagnetic coupling, the higher the transmission efficiency, and the brighter the LED beads, intuitively demonstrating the core principle and characteristics of wireless charging.

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Principle Display: ★★★★ Interaction Effect: ★★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★★

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