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Electrical systems - Coggle Diagram

- - - - common electrical appliances eg. electric kettle, toaster, iron
      - appliance has a heating element eg. high resistance nichrome wire
  - - - coil of wire usually wrapped around a piece of iron is called an electromagnet
        
        when current flows through the coil, the coil acts as a bar magnet. when current stops flowing, the electromagnet loses magnetism
    - - magnetic cranes, electric bells, electric motors
  - - - metallic object is covered with a thin layer of another metal
    - - reactive metals like sodium and aluminium are extracted from their compounds
        
        electric current is passes through the molten compound of the metal, which breaks down to give the metal
- - - - since water is a good conductor of electricity, a person would get an electric shock upon contact
      - should keep electric appliance away from water
    - - could lead to flow of a large current, so overheating and electric fire
      - should try to plug in one/less appliances
    - - could cause electric fire
      - should replace appliance
    - - could cause an electric shock
      - should insert a socket cap