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From series voltage sharing to a potential divider

From series voltage sharing to a potential divider

Potential divider circuit with supply Vs, series resistors R1 and R2, and output voltage Vout measured across the lower resistor

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.

Potential dividers and sensors Lesson

  1. A Level
  2. /Physics
  3. /Potential dividers and sensors

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.

Lessons