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This small Proof Plane has a solid brass disk attached to an insulating brass composite handle. It is used for transferring charge, or investigating charge distribution, in electrostatic investigations. Use with a Van de Graaff, Leyden Jar or show these effects using the E-Field Detector. Plate size: 20mm
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🇺🇸 Ship from USA · On Agora since 2025
$16.50
