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, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one has a worked solution and a mark scheme showing where the marks go.