some things you need to know about magnets££!!:(:(:(:(:(:(:(:(:(:(:(:(:

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  • magnets and electromagnets
    • magnetic fields
      • magnets create magnetic fields. These cannot be seen.
        • although we cannot see magnetic fields we can detect them using iron fillings .
          • the tiny pieces of iron line up in a magnetic field.
    • electromagnets
      • when an electric current flows in a wire it creates a magnetic field around the wire


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