• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Magnetism help

  • Thread starter miffy
  • Start date
what is the average size of a domain?
and how are "permanent" magnets made?

thanks, erin.
Permanent magnets are made from a mixture of elements usually iron and nickle or cobalt. Iron isn't a good permanent magnet, if you have an iron magnet then just droping it may make it scatter into different domains, therefore you try to mix it with weaker but more stable magnetic elements. I don't quite understand what you mean by the average size of domians, to my knowledge there is no specific sizes in which domians come in.
thanks. my teacher asked us to find the average size of domains, and i honestly looked everywhere i could think of and couldn't find anything.

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving