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# Potential Diff + Cap

What is potential difference? The work done in bringing a charge of +1 coulomb from one point to another in an electric field. V = W/Q
What is potential at a point? The potential difference between a point and the Earth.
What is capacitance? The ratio of change on a conductor to it's potential. C = Q/V --- OR --- Q = CV.
What is a parallel plate capacitor? Two identical parallel conducting plates separated by an insulator (dielectric).
What are the factors that affect the capacitance of a parallel plate capacitor? 1. Distance between plates. 2. Overlap area of plates. 3. Nature of Dielectric.
Give two uses of a capacitor. Tuning radios; flash guns.
What is the formula for the energy stored in a capacitor? W = 1/2 CV squared.
Created by: 2425224877795199

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