A resistor is connected to a battery. A second resistor is then added in series with the first. Explain why this increases the total resistance of the circuit.
The second resistor is removed and is then added in parallel with the first resistor instead. Explain why this decreases the total resistance of the circuit.
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.