Induced magnetism
1 mark · NormalWhich of the following materials is most suitable for making the core of a temporary electromagnet?
- A.Steel
- B.Cobalt
- C.Iron
- D.Copper
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Correct option: Iron
Common mistakes: Choosing steel; Choosing non-magnetic materials
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Marking points
B1 · 1 mark · Chooses the correct material: Iron.
Worked solution
The correct answer is Iron. Iron is easily magnetised and demagnetised, making it ideal for electromagnet cores.