A warning circuit contains a loudspeaker and a fixed resistor connected in series. During a test, the current in the circuit is 0.20 A for 2.5 min. The energy transferred by each component is shown in the table.
| Component | Energy transferred |
|---|---|
| Loudspeaker | 0.36 kJ |
| Fixed resistor | 0.18 kJ |
Calculate the potential difference across each component and compare your answers.
94 exam-style questions on Edexcel GCSE Physics 10.1 Circuits, charge and current, covering 10.1.1 Structure of the atom, 10.1.2 Circuit diagrams and symbols, 10.1.3 Series and parallel circuits, 10.1.4 Potential difference and voltmeters, 10.1.5 Energy transferred, charge and potential difference, and 10.1.6 Current, ammeters and charge flow. Each one has a worked solution and a mark scheme showing where the marks go.