Iron filings with a magnet

Iron filings with a magnet

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Credit: ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY

Caption: Magnetism. Image 1 of 3. 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. See images A230/083-085 for a sequence showing the iron being demagnetised by a reaction with sulphur.

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Keywords: attraction, bar, chemical, chemistry, field, hand, iron filings, magnet, magnetic, magnetism, physical, physics, science education

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