Electrical discharge. View of an electrical discharge created by a Van de Graaff generator. A Van de Graaff generator is a device for producing extremely high voltages. It consists of a fabric belt which collects charge from an external source and conveys it to a hollow metal sphere. As the charge cannot leave the external surface of the sphere,it continuously builds up,reaching potentials of millions of volts. When a conducting surface is placed near the sphere,there is a discharge in the form of a spark. This is analogous to a lightning strike between a cloud and the ground | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Hart-Davis, Adam |
Bildgröße: | 3537 px × 4843 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |