Compasses arranged around a coil of current-carrying wire,a type of electromagnet called a solenoid | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Dorling Kindersley / UIG |
Taille de l’image : | 3620 px × 4827 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |