From charge to useful energy
From charge to useful energy
Electricity in a wire is the movement of electric charge. Current is the rate of flow of charge, measured in amperes (A), and potential difference is the energy transferred per coulomb, measured in volts (V).
Step-by-step lessons covering Edexcel GCSE Physics Mains electricity and safety for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.