A monitoring device in a water pipe uses a small alternator. A technician tests the alternator using different coils. The magnetic field strength is the same in each test.
| Test | Number of turns on the coil | Rotation rate in rotations per second | Peak potential difference in V | Output frequency in Hz |
|---|---|---|---|---|
| 1 | 250 | 12 | 3.0 | 12 |
| 2 | 500 | 12 | 6.0 | 12 |
| 3 | 250 | 24 | 6.0 | 24 |
The monitoring device will use a coil with 500 turns rotating at 24 rotations per second.
Calculate the expected peak potential difference and output frequency of the alternator in the monitoring device.
96 exam-style questions on AQA GCSE Physics 7.3 Induced potential, transformers and the National Grid (HT only), covering 7.3.1 Induced potential (HT only), 7.3.2 Uses of the generator effect (HT only), 7.3.3 Microphones (HT only), and 7.3.4 Transformers (HT only). Each one has a worked solution and a mark scheme showing where the marks go.