A complete, ready-to-teach AQA A-level Physics lesson on EMF and internal resistance. This free sample is designed to show the structure and level of the GTM Physics A-level lesson series.
Students move from retrieval of potential difference and charge through the physical meaning of emf and internal resistance, calculation using ε = V + Ir, interpretation of V–I graphs, and power/efficiency.
Includes an editable 20-slide PowerPoint, original student worksheet and full teacher answers. The lesson contains worked modelling, guided practice, independent questions, common misconceptions and an exit ticket.
Suitable for AQA 7407/7408 Electricity and useful for other UK A-level Physics specifications covering internal resistance.
This resource contains original questions rather than reproduced exam-board questions, so it can be downloaded and used as a clean sample of the wider course.
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