Horseshoe magnet with various magnetic and non- magnetic objects. Ferrous objects such as a knife and screw are temporarily magnetised by a permanent iron magnet. An aluminium can and other non-metallic objects are left unaffected. Magnetism is mostly a property of metals. It is a force exerted at a distance through a field,generated by moving electric charge (electrons). It can attract or repel | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Andrew Lambert Photography |
Bildgröße: | 3574 px × 4909 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |