An electromagnetic four-potential is a relativistic vector function from which the electromagnetic field can be derived. It combines both an electric scalar potential and a magnetic vector potential into a single four-vector. As measured in a given frame of reference, and for a given gauge, the first component of the electromagnetic four-potential is conventionally taken to be the electric scalar potential, and the other three components make up the magnetic vector potential. While both the scalar and vector potential depend upon the frame, the electromagnetic four-potential is Lorentz covariant. Like other potentials, many different electromagnetic four-potentials correspond to the same electromagnetic field, depending upon the choice of gauge. This article uses tensor index notation and the Minkowski metric sign convention (+ − − −). See also covariance and contravariance of vectors and raising and lowering indices for more details on notation. Formulae are given in SI units and Gaussian-cgs units. (Wikipedia).
Electric Field (2 of 3) Calculating the Magnitude and Direction of the Electric Field
Explains how to calculate the electric field of a charged particle and the acceleration of an electron in the electric field. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts f
From playlist Electricity and Magnetism
Electric Field (3 of 3) Calculating the Electric Field In Between Two Charges
Explains how to calculate the electric field between two charges and the acceleration of a charge in the electric field. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts force
From playlist Electricity and Magnetism
Electric Field (1 of 3) An Explanation
Explains how to determine the direction and magnitude of the electric field from charged particles. You can see a listing of all my videos at my website, http://www.stepbystepscience.com An electric field is an area that surrounds an electric charge, and exerts force on other charges in t
From playlist Electricity and Magnetism
Physics 38 Electrical Potential (6 of 22) Electrical Potential Energy
Visit http://ilectureonline.com for more math and science lectures! This video is a part of my six-part lecture on electrical potential and electrical potential energy.
From playlist PHYSICS - ELECTRICITY AND MAGNETISM 3
Demonstrating that light is electromagnetic radiation from Maxwell's equations and how it is propagated.
From playlist Electricity & Magnetism
Physics 38 Electrical Potential (16 of 22) Potential Outside 2 Concentric Cylindrical Conductors
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the potential outside 2 concentric cylindrical conductors of same charge density.
From playlist PHYSICS 38 ELECTRICAL POTENTIAL
Physics - Thermodynamic Potentials: Ch 32.7 (1 of 25) Introduction
Visit http://ilectureonline.com for more math and science lectures! In this video I will introduce the content of this chapter of the thermodynamic potential and explain internal energy, enthalpy, Helmholtz free energy, Gibbs free energy, entropy, and the 1st Law of Thermodynamics. Next
From playlist PHYSICS 32.7 THERMODYNAMIC POTENTIALS
Physics 38 Electrical Potential (15 of 22) Potential Outside 2 Concentric Cylindrical Conductors
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the potential outside 2 concentric cylindrical conductors of same charge density.
From playlist PHYSICS 38 ELECTRICAL POTENTIAL
Maxwell's Equations in Tensor Form
It is a critical prerequisite of QED to understand how the laws of electromagnetism are encoded in tensor form. In this Lesson we build the 4-potential and then create the electromagnetic field tensor. Then we develop the 4-current and then combine everything into an arguably more elegant
From playlist QED- Prerequisite Topics
Physics 38 Electrical Potential (9 of 22) Potential Difference of 2 Pts Near Infinite Line Charge
Visit http://ilectureonline.com for more math and science lectures! In this video I will find the potential difference between 2 points near an infinite line charge.
From playlist PHYSICS 38 ELECTRICAL POTENTIAL
Lecture 7 | Modern Physics: Special Relativity (Stanford)
Lecture 7 of Leonard Susskind's Modern Physics course concentrating on Special Relativity. Recorded May 25, 2008 at Stanford University. This Stanford Continuing Studies course is the first of a six-quarter sequence of classes exploring the essential theoretical foundations of modern ph
From playlist Lecture Collection | Modern Physics: Special Relativity
[Lesson 22] QED Prerequisites: The Electromagnetic Field Tensor
This is a REPOST of a lecture with video repairs and some annoying errors corrected! To reinforce our efforts to put the 4-potential at center stage we do a second development, this time founded in Lorentz invariance ala Landau and Lifshitz "Classical Theory of Fields." Then, we show how
From playlist QED- Prerequisite Topics
Follow the Roar: Localisation and the Electromagnetic (EM) follow-up.. by Samaya Nissanke
The Future of Gravitational-Wave Astronomy URL: http://www.icts.res.in/discussion_meeting/fgwa2016/ DATES: Monday 04 Apr, 2016 - Friday 08 Apr, 2016 VENUE : Ramanujan Lecture Hall, ICTS Bangalore DESCRIPTION: On 2016 February 11, two major international collaborations jointly announce
From playlist The Future of Gravitational-Wave Astronomy
Planck's constant measured simply: from fizzics.org
An explanation and a practical demonstration with final calculations for more advanced physics students (typically 17 to 20 yrs). This is a follow on video from The Photoelectric effect: https://youtu.be/0T7fupNxZVA
From playlist The electromagnetic spectrum and waves
Particle Physics is Founded on This Principle!
Take your first steps toward understanding gauge field theory, which underlies everything we know about particle physics! Sponsored by Blinkist: Start your free trial and get 25% off! https://www.blinkist.com/elliot Get the notes for free here: https://courses.physicswithelliot.com/notes-
From playlist Field Theory Sequence
Particle Physics 5: Basic Introduction to Gauge Theory, Symmetry & Higgs
Part 5 of a series: covering Guage Theory, Symmetry and the Higgs
From playlist Particle Physics
Electromagnetic Induction - Review for AP Physics C: Electricity and Magnetism
AP Physics C: Electricity and Magnetism review of electric flux to understand magnetic flux, an example of magnetic flux through a current carrying wire loop, Gauss’s Law for Magnetism, electromagnetic induction, Faraday’s law, Lenz’s law, 6 examples of the direction of the induced magneti
From playlist AP Physics C: Electricity & Magnetism Review
Special Relativity | Lecture 7
(May 21, 2012) Leonard Susskind reviews some of the heavy mathematics from the previous lecture and discusses how at times complicated mathematics is the only way to explain high level physics, briefly sharing his thoughts on how and where math and nature collide. In 1905, while only twen
From playlist Lecture Collection | Special Relativity
Special Relativity | Lecture 8
(June 5, 2012) Leonard Susskind covers more topics in electromagnetism and relativity, including dynamics of the electric and magnetic field and the related effect of charges on the electromagnetic field. In 1905, while only twenty-six years old, Albert Einstein published "On the Electro
From playlist Lecture Collection | Special Relativity
Physics 38 Electrical Potential (4 of 22) Electrical Potential Energy
Visit http://ilectureonline.com for more math and science lectures! This video is a part of my six-part lecture on electrical potential and electrical potential energy.
From playlist PHYSICS - ELECTRICITY AND MAGNETISM 3