![](https://nthumb.tpgimages.com/mid2_com_img/1339/7975/TOP10163342.jpg)
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.
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Creative#:
TOP10163342
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
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N/A
Property Release:
N/A
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No
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