Time:1/2/2019 2:03:09 PMauthor:source:
The method is very simple. The temperature of the powerful magnet is below 80 degrees. We just put the powerful magnet on the fire for a few minutes. After cooling, you put it next to the iron block and found that he has lost magnetism and sucks again. Not up. The reason is that the strong magnets are magnetic because the iron atoms in the powerful magnets are regularly arranged. After it is heated, the original arrangement of the iron atoms is disordered, and thus the original magnetism is lost. Similarly, we can use other methods to degauss the powerful magnet.
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