Van de Graaff Generator

An electrostatic generator which employs a system of conveyor belt and spray points to charge an insulated electrode to a high potential.

  1. An endless motor-driven dielectric belt runs through the support from the base to the pulley within the terminal.

  2. In the machine, charge is sprayed by point discharge from metal needles, held at a potential of about 10 kV, on to the bottom of the belt.

  3. A row of needles near the upper belt pulley removes the charge from the belt and passes it to the outer surface of the spherical terminal.

See also: Electrostatic.

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Subjects: Electromagnetism