Current in a circuit
Current in a circuit
Electric current is the rate of flow of electric charge. A larger current means that more charge passes a point each second.
In circuit diagrams, conventional current is shown flowing from the positive terminal of a cell or battery towards the negative terminal. This is opposite to the direction of electron flow.
Step-by-step lessons on AQA GCSE Physics 2.1.2 Electrical charge and current. Each one builds up to exam-style questions. 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.