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If you bring an electrified body near the instrument, the two balls diverge because they acquire an electric charge of the same sign, due to the electric induction.
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The Van de Graaff generator is an electrostatic machine which uses a moving belt to accumulate electrostatic charge on a hollow metal globe on the top of a transparent and insulated column, that allows students to see how the system operates. It is provided with a 225 mm sphere which can generate approximately 150 ÷ 200 KV.
Provided with electric variable speed motor or hand driving. Discharge sphere, electrostatic plume and electrostatic whirl are included. It’s possible to adjust the distance between the globe and the discharge sphere, through an articulated joint placed on the base. Dimensions:
Spheres’ diameter: 225 mm and 70 mm
Height: circa 650 mm
Base: 250 x 350 mm
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Use the Charge Sensor as an electronic electroscope to obtain quantitative measurements when studying charging by induction, friction, or contact.
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The Electrostatics Kit allows students to perform a range of experiments in electrostatics with the Vernier Charge Sensor.
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