Charging an electroscope
Numéro d’image : 13619023
| Charging an electroscope, 3 of 4. Initially the electroscope is not electrically charged and there are no charged objects nearby. The two aluminium metal leaves hang loosely at the end of the metal rod. When a charged metal sphere is brought close to (but not touching) the ball at the top of the rod, the charges in the electroscope separate (electrostatic induction), causing the leaves to spread apart. When the sphere then touches the ball, the charges are transferred to the ball and the electroscope becomes charged. Its leaves remain separated even after the sphere is removed. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Turtle Rock Scientific |
| Taille de l’image : | 3400 px × 5144 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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