A simple electromagnet is constructed by coiling a length of wire around an iron nail. When electric current is passed through the wire,a magnetic field is produced,attracting steel paper clips. Photo 2 of 2 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 5149 px × 3420 px |
Modell-Rechte: | nicht erforderlich |
Restrictions: |
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