Magnetism. Iron filings being attracted to a bar magnet. The magnetic field of the magnet induces a small magnetic field in the iron filings,and the opposite magnetic poles than attract each other. The iron filings will remain magnetised for a time after the bar magnet has been removed | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 3609 px × 4873 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |