Physics PAG 3.1 determine the resistivity of a metal wire скачать в хорошем качестве

Physics PAG 3.1 determine the resistivity of a metal wire

In this practical masterclass, Dr David Boyce guides you step-by-step through PAG 3.1: Determination of Resistivity — a core required practical for A Level Physics. This isn’t just a demo: we go deeper, using real data, showing worked calculation examples, and exploring the extension content you need for top-grade exam answers. ✨ What you’ll learn in this video: • What resistivity is and why it matters in physics and engineering • How to set up the experiment correctly, including best practice for measuring length, diameter, and resistance • How to collect clean, reliable data • How to calculate resistivity using ρ = RA / L • Example calculations using live data gathered in the lesson • How to calculate percentage uncertainty in diameter, area, resistance, and final resistivity • How to quote your final result with an appropriate uncertainty • Common exam pitfalls — and how to avoid them • How to write up PAG 3.1 to meet A Level assessment criteria 📚 Extension Content Included: We take a close look at: • Propagating uncertainties through the calculation • Why micrometer and resistance measurements matter more than you think • How to justify the number of significant figures in your final answer Whether you’re revising for your exams, writing up the practical, or just want a clearer understanding of resistivity, this video gives you the depth and clarity needed to score highly. 👍 If you find this helpful, don’t forget to like, subscribe, and drop your questions in the comments