Phys 0175 - Lecture 12

# Phys 0175 - Lecture 12 - Reminder: Homework Assignments:...

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Reminder: Homework Assignments: PHYS 0175 – LON-CAPA HW #04 Now Open: Due on Sunday(@10pm), February 8th

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Lecture 12 (Feb. 02, 2009): Chapter 25: Capacitance Capacitors are devices to store electric PE Capacitance for several common geometries Combinations of capacitors: In parallel (V = constant) In series (q = constant) Illustrative example
Capacitors: widely-used devices that store electric potential energy. Fundamentally, every capacitor consists of a pair of conductors that are insulated from each other. Charge is transferred from one conductor to the other, so one ends up with a positive net charge and the other with an equal amount of negative net charge. The work that must be done to move the charges against the resulting potential difference between the conductors is stored as electric potential energy. Analogy: think of the work you do as you stretch a spring.

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Example: parallel-plate capacitor Two parallel conducting plates of area A, separated by a distance d.
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## This note was uploaded on 04/06/2009 for the course PHYS 0175 taught by Professor Koehler during the Spring '08 term at Pittsburgh.

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Phys 0175 - Lecture 12 - Reminder: Homework Assignments:...

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