A technician tests two circuits, A and B. Each circuit uses a 12 V supply and two lamps. The readings are shown in the table.
| Circuit | Potential difference across lamp 1 | Potential difference across lamp 2 | Current through lamp 1 | Current through lamp 2 |
|---|---|---|---|---|
| A | 5.0 V | 7.0 V | 0.30 A | 0.30 A |
| B | 12 V | 12 V | 0.18 A | 0.27 A |
Explain which circuit is a series circuit and which is a parallel circuit. Use the readings in the table.
Calculate the total current supplied to circuit B.
Explain what happens to the other lamp in circuit B if one lamp breaks.
94 exam-style questions on AQA GCSE Physics 2.2 Series and parallel circuits, covering 2.2 Series and parallel circuits. Each one has a worked solution and a mark scheme showing where the marks go.