Electrical discharge
Numéro d’image : 11892329
| Electrical discharge. View of an electrical discharge between two spheres of 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,such as the second sphere here,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 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Hart-Davis, Adam |
| Taille de l’image : | 3543 px × 4930 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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