talk:Maxwell's equations#Matrix rep and GA formulation in Alternative formulations
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Jefimenko
Why the discussion of Jefimenko in the Solutions section? Lienard-Wiechert were over 60 years earlier, and Jefimenko really does not add to their work as far as I can see. Having the LW work here would be appropriate, instead of the paragraph there now.
Modified Ampere law
Regarding [https://en.wikipedia.org/w/index.php?title=Maxwell%27s_equations&diff=1241984325&oldid=1241916498 this], I have replaced the seldomly used "Ampere's modified law" that was [https://en.wikipedia.org/w/index.php?title=Maxwell%27s_equations&diff=next&oldid=1241763309 recently] put in place of the somewhat awkwardly sounding "modified Ampere's law" with the more commonly used "Ampere-Maxwell law":
:
| class="wikitable" style="text-align: center" | |||
| Google Search | Scholar | Books | Web |
|---|---|---|---|
| "Ampere-Maxwell law"
| [https://scholar.google.com/scholar?q={{urlencode:"Ampere-Maxwell law"}} 1,480 (96.2%)] | [https://www.google.com/search?q={{urlencode:"Ampere-Maxwell law"}}&tbm=bks 1,330 (81.8%)] | [https://www.google.com/search?q={{urlencode:"Ampere-Maxwell law"}} 12,700 (77.1%)] | |||
| "modified Ampere's law"
| [https://scholar.google.com/scholar?q={{urlencode:"modified Ampere's law"}} 56 (3.6%)] | [https://www.google.com/search?q={{urlencode:"modified Ampere's law"}}&tbm=bks 293 (18.0%)] | [https://www.google.com/search?q={{urlencode:"modified Ampere's law"}} 3,670 (22.3%)] | |||
| "Ampere's modified law"
| [https://scholar.google.com/scholar?q={{urlencode:"Ampere's modified law"}} 3 (0.2%)] | [https://www.google.com/search?q={{urlencode:"Ampere's modified law"}}&tbm=bks 3 (0.2%)] | [https://www.google.com/search?q={{urlencode:"Ampere's modified law"}} 102 (0.6%)] |
Revert
@User:Constant314 please could you explain in more detail why you reverted the edit? Because the user has queried it on my talk page, and I am directing him here to discuss — Martin (MSGJ · talk) 19:25, 22 September 2024 (UTC)
:* Just plain wrong, which is sufficient reason to revert.
:* No WP:RS cited.
:* It was WP:OR or maybe WP:SYN.
:* The diagram in question appears as is in many reliable sources.
:* It was a comment in an article that should have been on the talk page. If that comment had been made on the talk page, I would not have reverted it. The editor is welcome to open a discussion and make a case here on the talk page or contact me on my talk page.
:Constant314 (talk) 21:21, 22 September 2024 (UTC)
::Here are a few relaible sources for the diagram as is:
::*Griffiths, Introduction to Electrodynamics, third edition, 1999, fig 9.10 on page 379.
::*Harrington, Introduction to Electromagnetic Engineering, Dover, 2003, fig. 10-4, page 262.
::*Prucell, Electricity and Magnetism, 2011, fig 9.7, page 333.
::*Halliday, Resnick & Walker, Fundamentals of Physics, 2003 fig. 34-5, page 805
::Constant314 (talk) 21:55, 22 September 2024 (UTC)
:::Thank you for the detailed response — Martin (MSGJ · talk) 04:22, 23 September 2024 (UTC)
Lorentz force and Maxwell's equations.
The Lorentz force is a prediction of Maxwell's equation.
Faraday's equation is: ∇×E = - dB/dt = -∂B/dt - ∇(v·B).
dB/dt = ∂B/∂t + ∇(v·B).
It is for the two frames of reference.
"∂B/dt" is when a magnetic field is changing around an electrical charge.
"∇(v·B)" is the perspective of a moving electrical charge.
"∇×E = - ∇(v·B)" is the Lorentz force part of Faraday's Equations.
In Ampère's law the equivalent to "∇(v·E)" would be "J/ε_0".
J = ε_0*∇(v·E).
Sorry for the shitty format, I suck at this. 2A02:AA1:105B:B81C:9404:E90D:541C:3A46 (talk) 20:30, 24 March 2025 (UTC)
Vectors in Maxwell equations
Curl and divergence operators work on vectors (nabla), i might be wrong but why aren't in maxwell equations E, B etc. written as vectors, cause on the other side there is even parcial derivation too 86.33.92.44 (talk) 11:42, 21 April 2025 (UTC)
:E and B are vectors in the article; that is why they are bold. I do not understand what you are trying to say about partial derivatives. XabqEfdg (talk) 12:24, 21 April 2025 (UTC)
: @86.., See Maxwell's equations#Key to the notation. --Ancheta Wis (talk | contribs) 13:35, 21 April 2025 (UTC)