A technician tests component X, which has a resistance of 6.0 Ω. It is connected in series with a 2.0 Ω resistor and a 12 V supply. The technician then adds a 4.0 Ω resistor in series. Component X must not have a potential difference greater than 5.0 V across it.
Calculate the potential difference across component X after the 4.0 Ω resistor has been added, and state whether it is greater than the limit for component X.
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.