In an industrial heating system, a tungsten filament is connected to a high-voltage power supply. When a current passes through the filament, it becomes extremely hot.
Explain, in terms of charge carriers and the metallic lattice, why the temperature of the tungsten filament increases.
59 exam-style questions on Edexcel GCSE Physics 10.2 Resistance, covering 10.2.1 Current in a circuit and conservation at junctions, 10.2.2 Resistance and variable resistors, 10.2.3 Series and parallel resistance, 10.2.4 I–V characteristics of components, and 10.2.5 LDRs and thermistors. Each one has a worked solution and a mark scheme showing where the marks go.