The National grid / GCSE Combined Physics
Electricity, The National grid, transformers, step-up, step-down, potential difference, transmission lines, Combined Physics, AQA Physics This project was created with Explain Everything™ Interactive Whiteboard for iPad. 00:00 Title 00:09 AC/DC 01:22 Mains electricity is an AC supply 02:23 Why use transformers? 03:16 Why use transformers? 03:58 Power and conservation of energy - recap 05:21 The National grid - transformer equation (combined H only)
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