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Simple phenomena of magnetism

Simple phenomena of magnetism

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Question 70

An experimenter wants to magnetise a steel bar. They list four potential procedures:

  1. Stroking the steel bar with one pole of a permanent magnet repeatedly in the same direction.
  2. Placing the steel bar inside a solenoid carrying a direct current (d.c.).
  3. Placing the steel bar inside a solenoid carrying an alternating current (a.c.) and slowly withdrawing it.
  4. Heating the steel bar to a high temperature and dropping it into cold water.

Which of these procedures will magnetise the steel bar?

A

1 and 2 only

B

1 and 3 only

C

2 and 4 only

D

1, 2 and 3

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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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