x

What the three quantities mean

What the three quantities mean

Circuit with a cell and switch, an ammeter in series with a resistor, and a voltmeter in parallel across the resistor, with current and potential difference labelled

A circuit needs a complete conducting path so electric charge can move. In metal wires the moving charges are electrons, but conventional current is taken from the positive terminal to the negative terminal.

2.1.3a Current, resistance and potential difference Lesson

  1. GCSE
  2. /Physics
  3. /2.1.3a Current, resistance and potential difference

Step-by-step lessons covering AQA GCSE Physics 2.1.3 Current, resistance and potential difference for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Build a strong grip on equations, units and Key Stage 3 fundamentals before tackling the more demanding topics like electromagnetism, the particle model of matter and space physics.

Lessons