cable,plug and sockets GCSE P5.4

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  • cables and plugs
    • plugs
      • have a live neutral and earth wire
        • also they have a fuse
          • a fuse blows if it can not manage the amount of energy that is coming through
            • it melts because of the overload
      • made of stiff plastic materials
      • the case material is an insulator
        • the wires inside can not touch anything
      • the pins are made of brass
    • cables
      • used for mains electricity
      • copper is used as it is a conductor
      • plastic is a good insulator
      • two-core cables are used for appliances
      • cables are different sizes
    • short circuits
      • it happens when the live and neutral touch
        • providing the fuse blows the current stops flowing
      • never touch them even if they turned off as your body is zero volts

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