This question is about the UK electricity supply system.
Which row in the table correctly identifies a typical transmission voltage used in the National Grid and the frequency of the domestic mains supply?
| Transmission voltage (V\text{V}V) | Domestic frequency (Hz\text{Hz}Hz) | |
|---|---|---|
| A | 400 000400\,000400000 | 50 |
| B | 400 000400\,000400000 | 230 |
| C | 230 | 50 |
| D | 230 | 230 |
Row A
Row B
Row C
Row D
39 exam-style questions on OCR GCSE Physics Powering Earth. Each one has a worked solution and a mark scheme showing where the marks go.