What a potential divider does
What a potential divider does

A potential divider uses two or more components in series across a supply so that only a chosen fraction of the source potential difference appears at the output. Because the components are in series, the same current flows through each one.
Step-by-step lessons on AQA A Level Physics Potential divider. Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.