A thin metal track is used to warm a vehicle's wing mirror. After the track has reached a steady temperature, the current through it and the potential difference across it remain constant. The table shows data for the track during a test.
| Time interval | Charge passing through the track | Energy transferred to the thermal store of the track |
|---|---|---|
| 150 s | 300 C | 3600 J |
Calculate the resistance of the metal track.
82 exam-style questions on AQA GCSE Physics 2.1 Current, potential difference and resistance, covering 2.1.1 Standard circuit diagram symbols, 2.1.2 Electrical charge and current, 2.1.3 Current, resistance and potential difference, and 2.1.4 Resistors. Each one has a worked solution and a mark scheme showing where the marks go.