Resistance and the resistance equation
Resistance and the resistance equation
Resistance is the opposition a component provides to the flow of charge. In a metal, drifting electrons collide with vibrating positive ions, transferring energy and slowing their movement.
Step-by-step lessons on Edexcel GCSE Physics 10.2 Resistance. 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.