i cant get neodymium magnet from anywhere can u suggest me any thing in which neodymium magnet is present or can i make it myself???plz help school project
If you need it really fast, and have a dead hard drive (dead as in it's not working anymore, not just because it's available), you can disassemble that and get a couple nice neodymium magnets.
I've seen web-sites where peple have taken the magnets out of magnetic toys. There's a toy called Magnetix, which uses strong magnets and ball-bearings as a constructional toy:
Although, by the looks of the Wikipedia page, there may be some issues with acquiring such toys now. But it does show that those are strong magnets! If small, strong magnets are what you need, a toy like that might be a solution.
you may be able to pick some up at a craft/hobby store. I found some smallish circular ones there once and I believe they were neodymium, they were really strong.
As JHub908 said, craft stores have the cheapest rare-earth magnets that I've seen. You can get 10 1/4" ones for like $2.95 at Hobby Lobby (or equivalent). Even Wal-Mart wants $3 for 2 of the same size.