From series voltage sharing to a potential divider
From series voltage sharing to a potential divider

A potential divider is a series circuit that produces an output voltage which is a fraction of the supply voltage. Because the resistors are in series, the same current flows through both, so the larger resistance gets the larger share of the voltage.
Step-by-step lessons covering Edexcel A Level Physics Potential dividers and sensors for A Level Physics. Each lesson works through exam-style questions in Paper 1, Paper 2 and Paper 3 format. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.