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Similarly, there is an electric potential energy associated with interacting charges. For each pair of interacting charges, the potential energy is given by: ... To find the total electric potential energy associated with a set of charges, simply add up the energy (which may be positive or negative) associated with each...
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physics.bu.edu/~duffy/PY106/Potential.html
physics.bu.edu/~duffy/PY106/Potential.html
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This notion is identical to the notion in Chapter 2 of the force as the gradient of the potential energy function. But since the electric field is a force per unit charge, the electric potential must be an energy per unit charge.
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www.rwc.uc.edu/koehler/biophys/4b.html
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Welcome to the Electric Field Applet; This applet allows the user to set up a distribution of charges, upon which the applet will show the electric potential, electric field lines, and equipotential lines. In addition, the electric force will be observed through real time interaction of charges.
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www.cco.caltech.edu/~phys1/java/phys1/EField/EField.htm...
www.cco.caltech.edu/~phys1/java/phys1/EField/EField.html
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If the electrical force moves a charge a certain distance, it does work on that charge. The change in electric potential over this distance is defined through the work done by this force:
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theory.uwinnipeg.ca/mod_tech/node88.html
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Another way of saying it is that it is the change in potential which has physical significance. The zero of electric potential (voltage) is set for convenience, but there is usually some physical or geometric logic to the choice of the zero point.
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hyperphysics.phy-astr.gsu.edu/hbase/electric/elepe.html
hyperphysics.phy-astr.gsu.edu/hbase/electric/elepe.html
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Question: A particle of charge is located on the -axis at coordinate . A second particle of charge is placed on the -axis at . What is the magnitude and direction of the total electrostatic force acting on a third particle of charge placed at ... Since , the force is repulsive. ... Since , the force is attractive.
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farside.ph.utexas.edu/teaching/302l/lectures/node19.htm...
farside.ph.utexas.edu/teaching/302l/lectures/node19.html
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2. Electric Potential Difference ... The volt (V) is the unit used to measure electric potential difference. (Students frequently confuse the symbol V used to express the unit (volt) with the term used in the expression for electric potential difference.
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www.sasked.gov.sk.ca/docs/physics/u3b23phy.html
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Also note that the sign of the charge is important and can not be neglected when calculating the electric potential of a set of point charges.
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www.ac.wwu.edu/~vawter/PhysicsNet/Topics/ElectricPotent...
www.ac.wwu.edu/~vawter/PhysicsNet/Topics/ElectricPotential/Potential.html
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