A small incubator has one heating element connected to a 10 V supply. The element has a resistance of 20 Ω. A second identical heating element is then connected in parallel with the first.
Explain what happens to the current in the first heating element and to the current from the supply when the second heating element is connected.
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.