An aerospace engineer is testing a smart carbon-fiber composite wing panel to monitor structural integrity by measuring its electrical resistance. The panel is connected to a stable DC voltage source.
Identify the two electrical measurements that must be made directly from the circuit to determine the electrical resistance of this composite panel.
59 exam-style questions on Edexcel GCSE Physics 10.2 Resistance. Each one has a worked solution and a mark scheme showing where the marks go.