PH-509
Induced magnetism
Physics · Secondary 3 · Medium · Induced magnetism
A bar magnet is placed next to an unmagnetised steel rod and an unmagnetised iron rod. Both rods are attracted to the magnet. The magnet is then removed. What happens to the rods?
- Both rods remain strongly magnetised
- Only the iron rod remains magnetised
- Only the steel rod remains strongly magnetised
- Neither rod was magnetised at any time
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