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Simple phenomena of magnetism

Simple phenomena of magnetism

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Question 92

An electromagnet requires a core that magnetizes easily when the current is turned on, but demagnetizes quickly when the current is turned off. Conversely, a permanent magnet needs to maintain its magnetism.

Which row correctly identifies the materials most suitable for making an electromagnet core and a permanent magnet?

Electromagnet corePermanent magnet
Aironiron
Bironsteel
Csteeliron
Dsteelsteel
A

Row A

B

Row B

C

Row C

D

Row D

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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