Three lamps are arranged so that P and Q are in series on one branch. R is on a second branch. Both branches are connected across a battery.
The filament in P breaks.
Which statement describes Q and R?
Q is on because its path is complete; R is off because its path is broken.
Q is off because its path is broken; R is on because its path is complete.
Q is off because its path is broken; R is off because its path is broken.
Q is on because its path is complete; R is on because its path is complete.
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.