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Summary - electromagnets (physics)

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This summary includes everything you need to know about permanent vs. temporary magnets, the motor effect, Fleming's left hand rule and anything else to do with electromagnets. Colour coded and simple to understand. Provides an excellent summary or overview of the key points in this topic.

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Document information

  • November 11, 2023
  • 2
  • 2023/2024
  • Summary

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its over magneticfield becomes
produces magnet whenplaced in
can't beturned on oroff a magneticfield
magnetizable materials can beturned all magnetismis lostwhenits remove
intopermanentmagnets bystroking the fromthefield
material with a p.m
they areonlyattractedbyothermagn
t notrepelled always causes a forceof
f attraction

I
used mainly
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I nÉ Éni
lose magnetism v
ridgemagnets
computers phones loudspeakers easily
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demagnetising magnets picking up andMong



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1 heating
hammering
knocksthe spin the electrons
magneticmaterial

A when a currentflowsthrough
of
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demagnensed createdaroundthewine
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of
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ieldsfromeach
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