PH-508
Induced magnetism
Physics · Secondary 3 · Medium · Induced magnetism
A factory uses an electromagnet on a crane to lift scrap iron and then drop it into a container. Which core material is most suitable, and why?
- Soft iron, because it is easily magnetised and demagnetised
- Soft iron, because it is a good electrical insulator
- Steel, because it keeps its magnetism permanently
- Steel, because it cannot be magnetised by a current
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