A component in a control circuit is tested at constant temperature.
| Potential difference across the component in V | Current through the component in mA |
|---|---|
| 1.8 | 3.0 |
| 4.8 | 8.0 |
The component is then connected across a potential difference of 7.2 V. Assume that the relationship shown by the results continues.
Use both sets of results to calculate the current through the component at 7.2 V.
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.