A model railway layout has two lamps connected on separate branches of a parallel circuit to a power pack. The power pack can be set to 3.0 V, 6.0 V, 9.0 V or 12 V. A voltmeter connected across one of the lamps reads 6.0 V. Which setting is the power pack on?
9.0 V
6.0 V
3.0 V
12 V
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.