A battery supplies two parallel branches. One branch contains lamp P and switch X in series. The other contains lamp Q and switch Y in series.
Switch Z is in the main wire between the battery and the branches.
Which switch arrangement allows Q to light while P is off?
X closed; Y open; Z closed
X open; Y closed; Z open
X closed; Y closed; Z open
X open; Y closed; Z closed
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.