Charge and static electricity
Charge and static electricity
Electric charge is a property of particles that makes them attract or repel. Charge is measured in coulombs, symbol C\text{C}C. Protons are positive, electrons are negative, and neutrons have no charge.
Step-by-step lessons on Edexcel GCSE Physics 11.1 Charging by friction. Each one builds up to exam-style questions. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.