physics paper 2 p7 magnets

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  • magnetism and magnets
    • poles
      • permanent - produce their own magnetic field
      • induced - only becomes magnetised once it is placed in an outer magnetic field
      • where the magnetic filed is the strongest
    • magnetic fields
      • strength depends on how close or far away the magnet is
      • iron,steel,nickel,cobolt
      • magnetic field = the region around a magnet


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