A-Level Physics Specification

OCR A H556

Section 6.1.2: Energy

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#6.1.2a

p.d.–charge graph for a capacitor; energy stored is area under graph

#6.1.2b

energy stored by capacitor;
\(W = \dfrac{1}{2}QV \), \(W = \dfrac{1}{2}\dfrac{Q^2}{C} \) and \(W = \dfrac{1}{2}V^2C \)

#6.1.2c

uses of capacitors as storage of energy.