Electric field - Revision history

DavidB4-bot: Spelling, Grammar, and General Cleanup

2017-09-01T14:08:36Z

Spelling, Grammar, and General Cleanup

FredericBernard: Added an image showing field lines

2017-08-22T12:33:42Z

Added an image showing field lines

FredericBernard: Expanded the page

2017-08-21T15:40:25Z

Expanded the page

GregLarson: categorizing

2007-11-10T01:48:34Z

categorizing

Ed Poor at 01:50, November 7, 2007

2007-11-07T01:50:07Z

Ed Poor: arises from an electric charge and can exert force on a charged object

2007-11-07T01:49:57Z

arises from an electric charge and can exert force on a charged object

New page

An '''electric field'' arises from an [[electric charge]] and can exert force on a charged object.

==Links==
*[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/efiecon.html#c1 Electric Field Concepts]

@@ Line 1: / Line 1: @@
-[[File:VFPt charges plus minus thumb.jpeg|thumb|alt=Electric field lines|right|290px|The attractive electric field between two charges of opposite sign. ]]An '''electric field''' is a [[vector field]] defined as the [[force]] per unit charge due to the [[Coulomb's Law|Coulomb force]].<ref>[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html Electric Fields on hyperphysics]</ref> When an [[charged particle|electrically charged particle]] is placed in an electric field, it experiences a force, the size and direction of which depends on the amount of charge on the particle. Mathematically this is F=qE. Electric fields are produced by objects with [[electric charge]] or by changing [[magnetic field]]s.
+[[File:VFPt charges plus minus thumb.jpeg|thumb|alt=Electric field lines|right|290px|The attractive electric field between two charges of opposite sign.]]An '''electric field''' is a [[vector field]] defined as the [[force]] per unit charge due to the [[Coulomb's Law|Coulomb force]].<ref>[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html Electric Fields on hyperphysics]</ref> When an [[charged particle|electrically charged particle]] is placed in an electric field, it experiences a force, the size and direction of which depends on the amount of charge on the particle. Mathematically this is F=qE. Electric fields are produced by objects with [[electric charge]] or by changing [[magnetic field]]s.
 ==Definition==
@@ Line 22: / Line 22: @@
 <references/>
-==See Also==
+==See also==
 *[[Magnetic field]]
 *[[Maxwell's equations]]

@@ Line 1: / Line 1: @@
-An '''electric field''' is a [[vector field]] defined as the [[force]] per unit charge due to the [[Coulomb's Law|Coulomb force]].<ref>[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html Electric Fields on hyperphysics]</ref> When an [[charged particle|electrically charged particle]] is placed in an electric field, it experiences a force, the size and direction of which depends on the amount of charge on the particle. Mathematically this is F=qE. Electric fields are produced by objects with [[electric charge]] or by changing [[magnetic field]]s.
+[[File:VFPt charges plus minus thumb.jpeg|thumb|alt=Electric field lines|right|290px|The attractive electric field between two charges of opposite sign. ]]An '''electric field''' is a [[vector field]] defined as the [[force]] per unit charge due to the [[Coulomb's Law|Coulomb force]].<ref>[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html Electric Fields on hyperphysics]</ref> When an [[charged particle|electrically charged particle]] is placed in an electric field, it experiences a force, the size and direction of which depends on the amount of charge on the particle. Mathematically this is F=qE. Electric fields are produced by objects with [[electric charge]] or by changing [[magnetic field]]s.
 ==Definition==
@@ Line 9: / Line 9: @@
 ===Field Lines===
-Field lines were developed by [[Michael Faraday]] as an intuitive way of understanding electric fields.<ref>[http://www.physicsclassroom.com/class/estatics/Lesson-4/Electric-Field-Lines physicsclassroom.com]</ref> The lines show the direction in which a small positive charge would accelerate. The spacing between lines shows the magnitude of the electric field; areas where lines that are close together mean the electric field is strong in that region. Field lines start on positive charges and go to negative charges.<ref group=note>Technically, electric fields can also start and end at infinity</ref> In this way positive charges are often called "sources" and negative charges "sinks".
+Field lines were developed by [[Michael Faraday]] as an intuitive way of understanding electric fields.<ref>[http://www.physicsclassroom.com/class/estatics/Lesson-4/Electric-Field-Lines physicsclassroom.com]</ref> The lines show the direction in which a small positive charge would accelerate. The spacing between lines shows the magnitude of the electric field; areas where lines that are close together mean the electric field is strong in that region. Field lines start on positive charges and go to negative charges.<ref group=note>Technically, electric field lines can also start and end at infinity</ref> In this way positive charges are often called "sources" and negative charges "sinks".
 ==Electrostatic fields==

@@ Line 1: / Line 1: @@
-An '''electric field''' arises from an [[electric charge]] and can exert force on a charged object.
+An '''electric field''' is a [[vector field]] defined as the [[force]] per unit charge due to the [[Coulomb's Law|Coulomb force]].<ref>[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/elefie.html Electric Fields on hyperphysics]</ref> When an [[charged particle|electrically charged particle]] is placed in an electric field, it experiences a force, the size and direction of which depends on the amount of charge on the particle. Mathematically this is F=qE. Electric fields are produced by objects with [[electric charge]] or by changing [[magnetic field]]s.
-==Links==
+==Definition==
-*[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/efiecon.html#c1 Electric Field Concepts]
+The electric field at any point in space is the [[force]] that a positive, stationary unit test charge would experience at that point. For stationary particles, [[Coulomb's Law|Coulomb's law]] can be used. Electric fields around positive charges point outwards.
 [[Category:Electricity]]

← Older revision		Revision as of 01:48, November 10, 2007
Line 3:		Line 3:
	==Links==		==Links==
	*[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/efiecon.html#c1 Electric Field Concepts]		*[http://hyperphysics.phy-astr.gsu.edu/hbase/electric/efiecon.html#c1 Electric Field Concepts]
		+
		+	[[Category:Electricity]]