E-field proof plane

E-Field Proof Plane

The E-Field Proof Plane is a device for transferring charge from a charged object. For example, charge a plastic strip (or other object) by rubbing with a cloth, then touch the charged strip with the proof plane. Charge will be shared between the object and the Proof Plane so both will have the same charge sign, which can be shown using the E-Field Detector.

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