Item Type: Foil Electroscope Material: Acrylic, Metal Use: To Check Whether The Object Is Charged and Whether The Charge of The Object Is Positive or Negative. Inspecting The Insulation of Objects and Demonstrating Induction Charging, Etc. Application Scenario: Classroom, Laboratory, Physics Experiment Teaching Product Size: Approx. 11.4 x 10.5 x 7.4cm / 4.5 x 4.1 x 2.9in ( Manual Measurement, Slight Error May Exist )
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