Electrostatic| LoFi version for PDAs |
 Help
 Search
 Members
 Calendar
|
| Welcome Guest ( Log In | Register ) | Resend Validation Email |
PhysForum Science, Physics and Technology Discussion Forums -> General Sci-Tech Discussions -> Homework Help
Add reply · Start new topic · |
Electrostatic| Nick |
Posted: Feb 18 2007, 10:18 PM
|
|
-- LIGHT FELL --  Group: Members Posts: 5292 Joined: 3-June 05 Positive Feedback: 58.82% Feedback Score: -40  |
Why would the electro(magentic) field be static? Why is the electric field a static one?
|
|
Send PM · Send email ·
|
| mr_homm |
Posted: Feb 19 2007, 05:03 PM
|
|
Advanced Member Group: Power Member Posts: 881 Joined: 31-March 06 Positive Feedback: 96.83% Feedback Score: 143 |
The electric field is called static if it results from static charges. "Static" in this context means motionless, as in the word "stasis" or the phrase "status quo." The field comes from the charges, so if they are unchanging, then the field will also be unchanging.
In contrast, you can also get electric field by varying a magnetic field (which is the principle behind electric generators), but the source of the electric field in this case is VARYING, i.e. not static. Thus this type of electric field is never a static one. Hope this helps! --Stuart Anderson -------------------- A hallmark of intelligence is the ability to give precise answers to vague questions.
|
|
|
|
Add reply · Start new topic · |
Powered by Invision Power Board(U) v.1.cust © 2003 IPS, Inc.