A student uses an energy monitor to measure the energy transferred by two different electric heaters.
The table below shows the energy transferred and the heating time for each device.
| Heater | Energy transferred (kJ) | Time (s) |
|---|---|---|
| Heater X | 72.0 | 150 |
| Heater Y | 90.0 | 150 |
Explain what the database measurements show about the average power of the two heaters.
31 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power. Each one has a worked solution and a mark scheme showing where the marks go.