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Great Electromagnetic Discoveries

Electromagnetism

★Exhibit Content: Composition of circuits, conductors and insulators ★Interaction: Electromechanical interaction ★Operation: Approach the exhibit, touch the glow plate or glow ball with your hand to guide the glow, place conductive materials to light up the bulb. ★Exhibit Description: The exhibit consists of decorative modeling components, retro decorative bulb components, musical Tesla coil, glow balls, and conductive material interactive components. The retro decorative bulb components are always on; the musical Tesla coil plays at scheduled times; the glow balls are located around the platform, and the inert gas inside the balls is ionized under high-frequency high-voltage electrodes to excite a beautiful glow. Visitors place their hands on the glow balls, and the glow balls emit a beautiful glow; placing the correct conductive material lights up the tabletop bulb. ★Scientific Principle: Conductors and insulators are two basic concepts in electricity, referring to substances that can conduct electricity and those that cannot in an electric field, respectively. A conductor is a substance that allows free movement of electrons; when a conductor is subjected to an electric field, electrons move freely within the conductor, forming an electric current. In conductor devices, a Tesla coil is an electromagnetic resonance device that, due to its unique structure and working principle, can generate high-voltage, high-frequency electric and magnetic fields. These high-voltage, high-frequency electric and magnetic fields can be used to light up LED lamps.

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