Magnetisation: Making Magnets (HSC SSCE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is magnetisation?
What is magnetisation?
Making a material magnetic
How can you magnetise a steel pin using a permanent magnet?
How can you magnetise a steel pin using a permanent magnet?
Repeatedly stroke it in one direction
What is a permanent magnet?
What is a permanent magnet?
Magnet retaining field after magnetising
Which material is used to manufacture permanent magnets?
Which material is used to manufacture permanent magnets?
Neodymium-iron-boron
What are domains in ferromagnetic materials?
What are domains in ferromagnetic materials?
Tiny regions where electron fields align
What happens to aligned domains when an external magnetic field is applied?
What happens to aligned domains when an external magnetic field is applied?
They grow larger
What is saturation magnetisation?
What is saturation magnetisation?
All electron fields aligned with field
How does higher temperature affect magnetisation?
How does higher temperature affect magnetisation?
More random arrangement, lower field
What is residual magnetisation?
What is residual magnetisation?
Field remaining after external field gone
Which factor affects how well a material remains magnetised?
Which factor affects how well a material remains magnetised?
Temperature of the material