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Capacitance

The capacitance C of a capacitor is defined as the charge stored per unit potential difference VThe unit of capacitance is the farad F.A graph of charge against potential difference at constant current (graph of current about 15 μA is shown below) is a straight line.

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Specification: AQA Physics (7408), A-level, 3.7.4.1 Capacitance. Topic: Capacitors.

Key terms in this lesson

fleming's right-hand rule
A rule using the right hand, held with thumb and first two fingers mutually at right angles, to give the directions of motion, field and induced current.

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