lec08_PyrakNolte - 2/1/12 Chapter 24 Capacitance Capacitor...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
2/1/12 1 2/1/12 1 Chapter 24 Capacitance • 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 . 2/1/12 2 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) 2/1/12 3 Capacitance between Parallel Plates Calculate the capacitance. We assume + , - charge densities on each plate with potential difference V : - - - - - + + + + A d 2/1/12 4 Example What is the capacitance of a parallel plate capacitor made out of two square plates 10 x10 cm 2 separated by 1 mm wide gap? d=1 mm A=0.01 m 2 If we connect 1.5V battery to its plates, how much charge could be stored in this capacitor?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2/1/12 2 2/1/12 5 Calculating Capacitance 1. Put + Q , Q on the plates.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/05/2012 for the course PHYS 241 taught by Professor Wei during the Spring '08 term at Purdue University-West Lafayette.

Page1 / 4

lec08_PyrakNolte - 2/1/12 Chapter 24 Capacitance Capacitor...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online