Capacitor: Difference between revisions
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Electric field near the center of a two-plate capacitor | Electric field near the center of a two-plate capacitor | ||
<math>\ E=\frac{Q/A}{epilson_0} \text{One plate has charge +Q and other plate has charge -Q; each plate has area A; Direction is perpendicular to the plates. Assumption: separation between capacitor is very small compared to the area of a plate. }</math> | <math>\ E=\frac{Q/A}{epilson_0} \text{One plate has charge +Q and other plate has charge -Q; each plate has area A; | ||
Direction is perpendicular to the plates. Assumption: separation between capacitor is very small compared to the area of a plate. }</math> | |||
Fringe Field (just outside the plates near center of disk) | Fringe Field (just outside the plates near center of disk) | ||
<math>\ E_{fringe}=\frac{Q/A}{2epilson_0}\frac{s}{R} \text{s is the separation between plates; R is the radius of plate }</math> | <math>\ E_{fringe}=\frac{Q/A}{2epilson_0}\frac{s}{R} \text{s is the separation between plates; R is the radius of plate }</math> | ||
==Examples== | ==Examples== | ||
Revision as of 00:32, 19 November 2015
Short Description of Topic
Claimed by Jiwon Yom
This page is all about the Electric Field due to a Point Charge.
Electric Field
Electric Field of two uniformly charged disks: A Capacitor
The Electric Field of a Capacitor can be found by the formula:
Electric field near the center of a two-plate capacitor
[math]\displaystyle{ \ E=\frac{Q/A}{epilson_0} \text{One plate has charge +Q and other plate has charge -Q; each plate has area A; Direction is perpendicular to the plates. Assumption: separation between capacitor is very small compared to the area of a plate. } }[/math]
Fringe Field (just outside the plates near center of disk)
[math]\displaystyle{ \ E_{fringe}=\frac{Q/A}{2epilson_0}\frac{s}{R} \text{s is the separation between plates; R is the radius of plate } }[/math]