Re: [Phys-L] big circuit

["Zani, Gerald" <gerald_zani@brown.edu>]

FYI
Veritasium revisited the topic and made a follow up video,
How Electricity Actually Works:
https://www.youtube.com/watch?v=oI_X2cMHNe0&ab_channel=Veritasium

- JZ

On Thu, Nov 25, 2021 at 7:38 PM Zani, Gerald <gerald_zani@brown.edu> wrote:

> For those like me who are thinking about this problem, this video is
> better in my opinion. It is more straightforward:
> https://www.youtube.com/watch?v=C7tQJ42nGno&ab_channel=TheScienceAsylum
>
> Here is what Feynman says on this:
> https://www.feynmanlectures.caltech.edu/II_27.html
>
> I found these articles:
>
> Energy flow from a battery to other circuit elements: Role of surface
> charges
> Manoj K. Harbola
> AJP 78, 1203 (2010)
>
> Poynting vector flow in a circular circuit
> Basil S. Davis and Lev Kaplan
> AJP 79, 1155 (2011)
>
> Visualizing Poynting vector energy flow in electric circuits
> Noah A. Morris and Daniel F. Styer
> AJP 80, 552 (2012)
>
> When we teach about simple circuits and energy flow we say that the flow
> of charge is the flow of energy. We never discuss the Poynting vector,
> except to define it and state how it describes the energy flow for a light
> wave. We do not link the Poynting vector to energy flow in a simple
> circuit.
> Can the energy flow of the Poynting vector flow in the same direction as
> the energy flow of the charge?
>
> - JZ
> --
> Gerald Zani
> Senior Engineering Technician
> Brown University School of Engineering
> (401) 863-9571


-- 
Gerald Zani
Senior Engineering Technician
Brown University School of Engineering
(401) 863-9571