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Charge flow in a circuit

Charge flow in a circuit

Circuit diagrams use standard symbols to show how components are connected, not their real shape or size. A circuit only works when there is a closed conducting loop and a source of potential difference, such as a cell or battery.

Current, potential difference and resistance Lesson

  1. GCSE
  2. /Combined Science
  3. /Current, potential difference and resistance

Step-by-step lessons covering AQA GCSE Combined Science Current, potential difference and resistance for Foundation and Higher tier. Each lesson works through exam-style questions.

Lessons

Current, potential difference and resistanceSeries and parallel circuitsDomestic uses and safetyEnergy transfers