Power and the national grid 0.0 / 5 ? PhysicsElectricityGCSEAQA Created by: fyfejacobCreated on: 17-11-19 19:00 What is the national grid? The system of transformers and high voltage power cables that provide electricity nationally. 1 of 5 What are the functions of step up and step down transformers? Converts the voltage up or down to allow transference into homes. 2 of 5 Why does the national grid use high voltages? Because there are lots of homes to be powered so there is high voltage required. 3 of 5 How does the national grid manage demand? If there is strain on the grid, companies may be asked to turn down their usage of the grid. 4 of 5 Is this question just to fill up the minimum of 5 cards? Yes 5 of 5
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