Go Back   Science Forums
View Single Post
Old 06-29-2006   #3 (permalink)
Tim_Lou's Avatar
Tim_Lou
Explaining


Location:
Edison, NJ
 
Tim_Lou will become famous soon enough
Send a message via MSN to Tim_Lou
 



Not Ranked  0 score     
Re: Electric fields and currents

yes, current in a wire (for example) is a result of electric field within the wire. (be it static or non-static)

and no, things do not necessary follow the field lines. the field lines only indicate force and hence acceleration when a charge is placed in that position. and acceleration does not necessary mean the direction of motion. for example, a particle can move in circle while the field is pointing toward the center of the circle.

as santus said, electrons in a wire are like particles bounding around. they are moving in very random fashion. when there is a field presented, they will still be bumping into things and colliding randomly. However, they will slowing tend to moving to the a higher potential (they are negatively charged). a great analogy is water falling from high ground to low ground in a river full of obstacles. (you can think of imaginary positive charges falling from high potential to low potential) people do not discuss about electrons moving in a wire, rather, they say positive charges moving in the oppositing direction. its just the way things are.

btw welcome to the forum.


----------------
I have mistaken, apologized, and taken the consequences. My only regret, was for how I was bothered by the unchangable.

Last edited by Tim_Lou; 06-29-2006 at 04:11 PM..
Reply With Quote
 
» Advertisement
» Current Poll
Who's the sexiest man alive? Johnny Depp or Robert Pattinson?
Johnny Depp - 27.27%
3 Votes
Robert Pattinson - 0%
0 Votes
Someone else (please specify) - 45.45%
5 Votes
I'm too macho to think a guy is sexy - 27.27%
3 Votes
Total Votes: 11
You may not vote on this poll.


All times are GMT -8. The time now is 01:09 AM.

Hypography?

Hypography [n.]: A combination of "hyperlink" and "bibliography" - ie, a list of links to electronic documents. Comparable to discography and bibliography, but not cartography.

We have been online since May 2000, and aim to be the best place to find and share science-related content of all kinds.

Share the love!

Please add more science to your life. Use our RSS feeds on your blog, your portal, or your favorite feedreader!


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Copyright © 2000-2009 Hypography
Part of the Hypography - Science for Everyone Network