An oscilloscope is used to monitor the current in a resistive wire. Compare the drift behavior and net displacement of the conduction electrons in the wire when it is connected to a direct current (d.c.) source versus when it is connected to an alternating current (a.c.) source.
32 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.