Conductivity test. A battery and a light bulb are used to test electric conductivity of different materials. As shown here with a penny, copper does conduct an electrical current hence copper is classified as an conductor. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Photo Researchers |
Taille de l’image : | 3638 px × 2594 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |