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Simple phenomena of magnetism

Simple phenomena of magnetism

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Question 1

Which of the following procedures is the most effective method for demagnetising a steel bar magnet?

A

Place the magnet inside a solenoid connected to an alternating current (a.c.) supply, and then slowly withdraw it far away from the solenoid.

B

Place the magnet inside a solenoid connected to a direct current (d.c.) supply, and then slowly withdraw it.

C

Hammer the magnet repeatedly while keeping it aligned in a North-South direction.

D

Heat the magnet slightly and store it alongside a soft iron keeper.

Markscheme

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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