# lecture10 - Capacitance(Chapter 26 Capacitance Definition D

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Capacitance (Chapter 26) Capacitance (Chapter 26) Capacitance – the property of a conductor or                       set of conductors and insulators                       to store electric charge Capacitor – an electronic component that has                    the ability to store charge Definition Calculating Capacitance Dielectrics and Dielectric Constant

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Definition :   Capacitance C of two  conductors with  equal but opposite charges Q C V = V = potential difference created when charge +Q is on one  conductor, and –Q is on the other. Unit :   (F)    farad   volt coulomb 1 = Typically ranges from 1μF = 10 -6  F and 1pF = 10 -12  F              1 F is a LOT of stored charge !!!
1) Find the electric field as a function of  r  using Gauss’s Law. 2) Choose a path along a field line: the potential change with each small

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lecture10 - Capacitance(Chapter 26 Capacitance Definition D

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