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Why capacitors?

GIPHOTOSTOCK/SPL

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 Highers/Advanced Highers exam specifications.

This article explains how a capacitor can store charge and energy, how its capacitance depends on its dimensions, and how capacitors behave in circuits.

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Moments and motorbikes

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Solution and notes

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