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O-LevelPhysicsMagnetism5054/11 · Oct/Nov 2013 · Q341 Mark

Which material is used for the core of a transformer and why?

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Amaterial: copper, reason: good conductor of electricity

Bmaterial: copper, reason: easy to magnetise and demagnetise

Cmaterial: iron, reason: good conductor of electricity

Dmaterial: iron, reason: easy to magnetise and demagnetise

✓ Correct answer

D: material: iron, reason: easy to magnetise and demagnetise

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About this question

Topic: Magnetism, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2013 Paper 1 Variant 1, question 34.

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