Concept 8 of 8Foundation
Watch on YouTubeVideoCare of magnets (do's and don'ts)
- ✅ Store bar magnets in PAIRS with UNLIKE poles together and iron 'keepers' at the ends.
- ❌ Don't drop them repeatedly — shock disturbs the domain alignment.
- ❌ Don't heat them — heat scrambles the internal alignment.
- ❌ Don't hammer them.
- ❌ Keep away from TVs, older CRT screens, credit cards, mobile phones, pacemakers.
Example
A lab magnet stored carelessly loses half its strength in a year. Stored with keepers, it lasts decades.
💡 Tip:Three things that demagnetize: heat, hammering, dropping.
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5 questions to check what you just read.
0 / 5
- Q1.Best way to store bar magnets:
- Q2.Dropping a magnet repeatedly:
- Q3.Heating a magnet:
- Q4.Keep magnets away from:
- Q5.Which three actions can demagnetise a magnet?