NTNUJAVA Virtual Physics LaboratoryEnjoy the fun of physics with simulations! Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
January 16, 2021, 04:52:11 pm

To live close to great minds is the best kind of education. ..."John Buchan (1875~1940 Scotticsh historian, Governor General of Canada)"

 Pages: [1]   Go Down
 Author Topic: charge particles attracted to a dielectric  (Read 4387 times) 0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
danielemateriale
Jr. Member

Offline

Posts: 48

 « Embed this message on: July 17, 2013, 11:12:26 pm » posted from:MILANO,LOMBARDIA,ITALY

hello an electric field forms a dipole moment of a dielectric material and if the field is not constant, the dielectric or the source of the field can be drawn between them.

The simulation speaks of an electric charge that is attracted by a thin layer of alumina. I produced the expressions, which are shown in the world file, which I have attached. A force is repulsive is another attractive. the repulsive force arises from charges that have been positioned on the dielectric at a distance from the particle and forming a field opposite to that of the particle.

in the file d is the vertical distance of the particle from the dielectric. all forces are parallel to the direction of the velocity of the particle

I would like to know if the particle is trapped on the surface of the dielectric or if she runs away from Dielectric.

typical charge of particles =e or n*e n=1,2,3
typical d =4*10^-4m
typical v= from 400 to 2000 m/s
d minimum tipical=120 pm N2 radius (120*10^-12 m)
 Senza titolo-2.jpg (58.28 KB, 364x508 - viewed 541 times.) « Last Edit: July 17, 2013, 11:50:54 pm by danielemateriale » Logged
danielemateriale
Jr. Member

Offline

Posts: 48

 « Embed this message Reply #1 on: July 18, 2013, 12:12:03 am » posted from:MILANO,LOMBARDIA,ITALY

the minus sign on a is wrong!!!
 Logged
danielemateriale
Jr. Member

Offline

Posts: 48

 « Embed this message Reply #2 on: July 18, 2013, 03:25:47 am » posted from:MILANO,LOMBARDIA,ITALY

I have no more need the simulation I solved alone
 Logged
AimeeSantana
Newbie

Offline

Posts: 4

 « Embed this message Reply #3 on: January 14, 2014, 09:02:24 am » posted from:Makati,Manila,Philippines

the minus sign on a is wrong!!!

If the minus sign is wrong, what is the best thing to put in?
 Logged
 Pages: [1]   Go Up
To live close to great minds is the best kind of education. ..."John Buchan (1875~1940 Scotticsh historian, Governor General of Canada)"