- published: 06 Apr 2009
- views: 271092
An electric potential (also called the electric field potential or the electrostatic potential) is the amount of electric potential energy that a unitary point electric charge would have if located at any point in space, and is equal to the work done by an electric field in carrying a unit of positive charge from infinity to that point.
According to theoretical electromagnetics, electric potential is a scalar quantity denoted by Φ(Phi), ΦE or V, equal to the electric potential energy of any charged particle at any location (measured in joules) divided by the charge of that particle (measured in coulombs). By dividing out the charge on the particle a remainder is obtained that is a property of the electric field itself.
This value can be calculated in either a static (time-invariant) or a dynamic (varying with time) electric field at a specific time in units of joules per coulomb (J C−1), or volts (V). The electric potential at infinity is assumed to be zero.
A generalized electric scalar potential is also used in electrodynamics when time-varying electromagnetic fields are present, but this can not be so simply calculated. The electric potential and the magnetic vector potential together form a four vector, so that the two kinds of potential are mixed under Lorentz transformations.
A discussion of electric potential and potential difference. High school difficulty level. From the physics course by Derek Owens. The distance learning course is available at http://www.derekowens.com
Introduction to electric potential energy. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/electrical-engineering/robots/all-about-spout/v/spout-bot-at-santa-rita-elementary-school?utm_source=YT&utm;_medium=Desc&utm;_campaign=electricalengineering Missed the previous lesson? https://www.khanacademy.org/science/electrical-engineering/ee-electrostatics/ee-fields-potential-voltage/v/proof-advanced-field-from-infinite-plate-part-2?utm_source=YT&utm;_medium=Desc&utm;_campaign=electricalengineering Electrical engineering on Khan Academy: A summary of the math and science preparation that will help you have the best experience with electrical engineering taught on Khan Academy. Become familiar with engineering numbers and notation, and learn about the two most impor...
We move from Force to Energy to Potential (the tricky one) to Field Strength, in a Uniform Gravitational Field and a Uniform Electric Field. You already love gravity, so this will help, I hope.
Electrostatic Potential, Electric Energy, eV, Conservative Field, Equipotential Surfaces, Great (& dangerous) Demos! Assignments Lecture 1, 2, 3, 4 and 5: http://freepdfhosting.com/2cb4aad955.pdf Solutions Lecture 1, 2, 3, 4 and 5: http://freepdfhosting.com/75b96693f2.pdf
Shows how voltage can be visualized as electric potential energy. Includes topics such as why the voltage is the same everywhere inside a metal conductor.
Gives a few of the basics of Electric Potential, Electric Potential Difference, and Voltage. For a complete index of these videos visit http://www.apphysicslectures.com
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David explains electric potential (voltage). Created by David SantoPietro. Watch the next lesson: https://www.khanacademy.org/science/physics/circuits-topic/circuits-resistance/v/circuits-part-1?utm_source=YT&utm;_medium=Desc&utm;_campaign=physics Missed the previous lesson? https://www.khanacademy.org/science/physics/electric-charge-electric-force-and-voltage/electric-potential-voltage/v/voltage?utm_source=YT&utm;_medium=Desc&utm;_campaign=physics Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a b...
Lecture on Gauss law and Electric Potential
Dr Mike Young covers the Electric Potential and Electric Potential Energy.