Energy, Power and Resistance(OCR A-Level)

Mastery Mind: Physics Revision · Oct 20, 2026

This guide provides a comprehensive overview of the OCR A-Level Physics topic 'Energy, Power and Resistance' (4.2). It covers the key concepts of e.m.f., potential difference, resistivity, and power, with a focus on exam technique and common pitfalls to help students secure maximum marks. Listen to this audio revision guide for Energy, Power and Resistance. Test your knowledge with interactive exam questions and flashcards at https://masterymind.co.uk/study-guides/physics-ocr-a-level-energy-power-and-resistance.