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P1.4.2 - AQA GCSE Physics Unit 1
P1.4.2 |
The National Grid |
a) Electricity is distributed from power stations to consumers along the National Grid. |
Candidates should be able to identify and label the essential parts of the National Grid.
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b) For a given power increasing the voltage reduces the current required and this reduces the energy losses in the cables. |
Candidates should know why transformers are an essential part of the National Grid. |
c) The uses of step-up and step-down transformers in the National Grid. |
Details of the structure of a transformer and how a transformer works are not required. |
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