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Posted: Feb 18 2007, 10:18 PM
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Why would the electro(magentic) field be static? Why is the electric field a static one?
Posted: Feb 19 2007, 05:03 PM
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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!
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