How Long Can Magnets Maintain Their Properties in a Repelling Magnetic Field?

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SUMMARY

Permanent magnets maintain their magnetic properties for years, primarily influenced by the material composition and environmental factors. In ideal conditions, such as avoiding heat and stray magnetic fields, the longevity of magnets in a repelling configuration remains high. The discussion emphasizes that while permanent magnets can last a long time, specific conditions can affect their performance. Users are encouraged to research the material properties of magnets for more detailed insights.

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The_Thinker
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Just a few simple questions about magnets:

1) If 2 permanent magnets are placed one on top of the other such that one magnet repels the other and therefore the second magnet levitates and assuming that this is a ideal situation and the magnet is not knocked off its vertical levitating position, how long would the two magnets maintain their magnetic properties? - basically how long would 2 permanent magnets last in a repelling magnetic field without losing its magnetic properties?

2) If a have 2 cylinders like shown in the diagram, with the two cylinders repelling each other... how long would the magnets last?

Thanks... :)
 

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How long a permanent magnet keeps its magnetism depends on several factors - mainly the material its made from and its environment. Heating magnets is bad for them, as are stray magnetic fields. A good magnet will stay magnetic for years. Pretend you want to buy a magnet and do a web search.

I don't understand the diagram.
 

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