Electric Van De Graaff Generator
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Description
The Van de Graaff Generator is a powerful electrostatic apparatus used to demonstrate static electricity, electric charge accumulation, and potential difference. Commonly used in physics laboratories and classroom demonstrations, it generates high voltages through a moving belt mechanism and displays visible electric discharges, sparks, and attraction effects.
1.It's motor-driven.
2.Big ball:230mm dia
3.Small ball:60mm dia
4.Spark distance:0-100mm