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Simple phenomena of magnetism

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Question 120

Which of the following methods can be used to demagnetise a permanent steel magnet?

Burying it in dry sand for several days

Wrapping it tightly in copper foil

Heating it to a very high temperature in a flame

Leaving it in a coil connected to a direct current (DC) supply

Markscheme

Simple phenomena of magnetism Questions

IGCSE
Physics
Simple phenomena of magnetism

169 exam-style questions on CIE IGCSE Physics Simple phenomena of magnetism, covering Simple phenomena of magnetism. Each one has a worked solution and a mark scheme showing where the marks go.

Simple phenomena of magnetism

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Simple phenomena of magnetism

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Question 120

Which of the following methods can be used to demagnetise a permanent steel magnet?

Burying it in dry sand for several days

Wrapping it tightly in copper foil

Heating it to a very high temperature in a flame

Leaving it in a coil connected to a direct current (DC) supply

Markscheme

Simple phenomena of magnetism Questions

IGCSE
Physics
Simple phenomena of magnetism

169 exam-style questions on CIE IGCSE Physics Simple phenomena of magnetism, covering Simple phenomena of magnetism. Each one has a worked solution and a mark scheme showing where the marks go.