This presentation covers OCR Gateway Physics 9-1 P8.2.4 Mains Electricity
This PowerPoint is a whole lessons included with student activities and animated answers.
- Domestic Electrical Supply being 230 V, AC at 50 Hz.
- Direct potential difference and alternating potential difference.
- Reasons for insulation on wires.
- Potential Difference between different conductors.
- Function of the earth conductor.
- Double insulation and no earth wire.
- Reasons the live wire is dangerous.
- Reasons why live to earth is dangerous.
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