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Simple phenomena of magnetism

Simple phenomena of magnetism

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Question 131

Which procedure can be used to successfully demagnetise a strongly magnetised steel bar?

A

submerging the steel bar in cold water

B

placing the steel bar inside a solenoid carrying a large direct current (d.c.)

C

connecting both ends of the steel bar with a copper wire

D

placing the steel bar inside a solenoid carrying an alternating current (a.c.) and slowly withdrawing it

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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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