Key Stage 3
Meaning
The mains electricity is the electricity supply to houses, shops and factories.
Key Stage 4
Meaning
The mains electricity is the electricity supply to houses, shops and factories provided by the National Grid.
About Mains Electricity
- The mains in the houses in the UK provides a potential difference of 230V and provides a maximum current of 13A.
- The mains electricity is an alternating current with a frequency of 50Hz.
- The power supply for the mains electricity is a variety of energy resources including; Coal, Natural Gas, Nuclear Fuel and Wind.
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| The percentage of the United Kingdom's electricity generated by different energy resources 2014 is shown in a pie chart. |