Description: 【Educational Purpose】: This spherical conductor apparatus is designed for demonstrating electrostatic induction and the distribution of charges on a charged conductor, making it an essential tool for physics education and experiments 【Sturdy Construction】: The device features a metal hollow shell in a spherical shape, supported by bakelite legs and an acrylic rod mounted on the base, ensuring stability during demonstrations 【Effective Demonstrations】: Use this apparatus to show that static charges only distribute on the surface of conductors. By charging the sphere and interacting with an electroscope, students can observe charge distribution phenomena clearly 【Usage Tips】: For optimal results, ensure all components are clean and dry; perform experiments on PP or paraffin boards to avoid moisture interference. Charging the sphere with more electricity enhances demonstration effectiveness 【Maintenance Advice】: Regularly check and maintain the metal surface to avoid rust or coating detachment, ensuring longlasting performance of your educational equipment Specification: Material: Metal Size Chart: W*H: 9cmx18cm/3.54inchx7.09inch Package Includes: 1 Electrostatic Induction Spherical Conductor Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.