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Simple phenomena of magnetism

Simple phenomena of magnetism

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Question 37

Which of the following methods is a correct way to demagnetise a steel bar magnet?

A

Hammering the magnet repeatedly while it is aligned in an East-West direction.

B

Placing the magnet inside a solenoid connected to a steady d.c. supply and then switching it off.

C

Cooling the magnet to very low temperatures in a freezer.

D

Gently stroking the magnet with one pole of another permanent magnet in a single direction.

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Simple phenomena of magnetism Questions

  1. IGCSE
  2. /Physics
  3. /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.

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