3.4.15

Uses of Electromagnets

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Uses of Electromagnets

Electromagnets are all around us. Most devices contain electromagnets without you even realising.

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Common uses

  • Electromagnets can be found in:
    • Television sets.
    • Maglev trains.
    • MRI machines.
    • Loudspeakers.
    • Scrapyard cranes that are able to pick up and move vehicles.
    • Electric bells.
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DC motors

  • If an electrical item moves, chances are it has an electric motor.
  • A motor is a coil of wire between two magnets.
  • When the wire is placed between the magnets in their magnetic field it moves.
    • This is called the motor effect.

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1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Disciplinary Knowledge

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