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Electromagnetic tensor - Wikipedia

en.wikipedia.org

From now on in this article, when the electric or magnetic fields are mentioned, a Cartesian coordinate system is being assumed, and the electric and magnetic fields are with respect to coordinate system's own reference frame, as in the equations above.

Quantization of the electromagnetic field - Wikipedia

en.wikipedia.org

As the term suggests, an EM field consists of two vector fields, an electric field E(r,t) and a magnetic field B(r,t). Both are time-dependent vector fields that in vacuum depend on a third vector field A(r,t) (the vector potential), as well as a scalar field φ(r, t).

Mathematical descriptions of the electromagnetic field - Wikipedia

en.wikipedia.org

There are various mathematical descriptions of the electromagnetic field that are used in the study of electromagnetism, one of the four fundamental forces of nature. In this article three approaches are discussed, generally the equations are in terms of electric and magnetic fields, potentials...

Physics equations/Magnetic field calculations - Wikiversity

en.wikiversity.org

2 Magnetic field lines for typical geometries. 3 Magnetic field due to a current loop. 4 Ampère's circuital law.

Magnetic field of a ferromagnetic cylinder | Physics Forums...

www.physicsforums.com

Meanwhile the magnetic field ## B=\mu_o H+M ## (Note this is a pole method equation-the surface current method does not have any magnetic poles or H due to the poles) and the ## H ## from the endfaces is approximately zero.

homework and exercises - Deriving the speed of the propagation...

physics.stackexchange.com

Deriving the speed of the propagation of a change in the Electromagnetic Field from Maxwell's Equations.

Kids.Net.Au - Encyclopedia > Maxwell's equations

encyclopedia.kids.net.au

This equation is related to the magnetic field's structure because it states that given any volume element, the net magnitude of the vector components that point outward from the surface must be equal to the net magnitude of the vector components that point inward.

Spin in a magnetic field | Lecture 9 - Quantum Entanglements...

www.lecture-notes.co.uk

However, the magnetic field does not play any quantum mechanical role since, we could for example be using a huge $10$ Tesla field on the particle. So, in our (simple) equation for energy, we must replace the $z$-component of the spatial spin vector with the spin operator in the $z...

Introduction to Mathematical...

en.wikibooks.org

Electromagnetic interaction is described by the means of Electromagnetic fields: field called electric field, field called magnetic field, field and. field. Those fields are solution of Maxwell equations, \index{Maxwell equations}. where. is the charge density and. is the current density.

Superconductors: Magnetic Fields

photonics101.com

Learn in this problem how a magnetic field is expelled from a superconductor and why photons are said to acquire mass in such materials.

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