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Wireless Charging

Mobile Science Museum · Electromagnetism

Operation: 1. Press the "Principle Demonstration" button, move the slider left and right, and observe the changes as the slider approaches the coil; 2. Press the "Car Charging" button and observe the changes in the car; 3. Press the "Phone Charging" button, place a phone with wireless charging capability on the tray, and observe the changes in the phone. Exhibit Overview: The exhibit consists of a wireless charging principle demonstration device, a car charging demonstration device, a phone charging device, etc. Visitors can switch functions via buttons and experience the convenience brought by wireless charging. Scientific Principle: Wireless charging, also known as inductive charging or non-contact inductive charging, utilizes near-field induction, i.e., inductive coupling, where a power supply device (charger) transmits energy to a device that uses the received energy to charge the battery and simultaneously power its own operation. Since energy is transmitted between the charger and the device via inductive coupling without wire connection, both the charger and the device can be designed with no exposed conductive contacts.

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