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The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.
Capacitors are devices that store charge and energy. Like cells and batteries, when connected into a circuit they can drive an electric current due to the potential difference across their terminals. A new generation of supercapacitors can store much more energy than conventional capacitors due to the movement of ions within an electrolyte, which makes the supercapacitor act like two large capacitors connected in parallel.
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