lec05_ddn - 9/6/11 1 Lecture 5: Capacitors...

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Unformatted text preview: 9/6/11 1 Lecture 5: Capacitors &Capacitance A d Parallel Plates Cylindrical Capacitor 9/6/11 2 Capacitor Capacitor is a device that stores electrostatic potential energy. A capacitor consists of 2 spatially separated conductors which can be charged to +Q and - Q . 9/6/11 2 Capacitor Capacitor is a device that stores electrostatic potential energy. A capacitor consists of 2 spatially separated conductors which can be charged to +Q and - Q . 9/6/11 3 Capacitance The capacitance is defined as the ratio of the charge on one conductor of the capacitor to the potential difference between the conductors. Capacitance is measured in Faradays represented by the letter F which is equal to (coulomb/volt) 9/6/11 4 Capacitance between Parallel Plates Calculate the capacitance. We assume + ,- charge densities on each plate with potential difference V : - - - - - + + + + A d 9/6/11 5 Demo Demo: Capacitance versus d...
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This note was uploaded on 12/04/2011 for the course PHYS 220 taught by Professor Chang during the Spring '09 term at Purdue University-West Lafayette.

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lec05_ddn - 9/6/11 1 Lecture 5: Capacitors...

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