Specification Checklist: Capacitors

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  • Created by: Lola
  • Created on: 24-03-13 17:53
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  • Capacitors
    • Recall that applying a potential difference to 2 parallel plates produces a uniform electric field in the central region between them
    • Draw and interpret diagrams using lines of force to describe uniform electric fields qualitatively.
    • Recognise and use the expression             E=  V / d
    • Use the expression                  C = Q / V
    • Recognise and use the expression                 W=1/2 Q V for the energy stored by a capacitor & derive the expression from the area under a graph of p.d. vs charge stored
    • Derive and use related equations for energy stored, such as            W= 1/2 CV


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