Is energy transferred as a wave or particle in classical physics?

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Discussion Overview

The discussion centers around the nature of energy transfer in classical physics, specifically whether energy is transported by waves or particles. Participants explore various contexts, including electric fields, DC circuits, and the implications of statements from a textbook on quantum physics.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • One participant questions the accuracy of the statement that energy is transported by waves or particles in classical physics, particularly regarding the role of electric fields.
  • Another participant argues against the statement by citing that in a DC circuit, energy is transported through the static electric field as indicated by the Poynting vector, rather than through waves.
  • Some participants assert that while energy can be stored in a static electric field, its transport must occur via electromagnetic waves or through currents carried by charged particles, such as electrons.
  • A later reply emphasizes the calculation of the Poynting vector in a DC circuit, suggesting that energy is carried by the field and not by the current, challenging the wave-particle dichotomy.
  • One participant introduces the idea of wave-particle duality, questioning whether the author of the quoted text is referring to this concept in the context of sub-atomic particles like electrons and photons.

Areas of Agreement / Disagreement

Participants express disagreement regarding the initial statement about energy transport, with multiple competing views on the role of waves and static fields in energy transfer. The discussion remains unresolved, with no consensus reached.

Contextual Notes

Participants highlight limitations in the original statement, including the dependence on specific contexts such as DC circuits and the interpretation of energy transport mechanisms. The discussion also reflects varying interpretations of the role of electric fields and the implications of wave-particle duality.

Naman Jain Kota
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I read a line in the book "Quantum physics of atoms, molecules, solids, nuclei, and particles" by resnick

The line is "in classical physics energy is either Transported by waves or by particles"

I have doubt is it correct, like we say eneegy is stored in electric field, is electric field considered as wave.

And is the statement true without any exception (classical physics)
 
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I also would disagree with the statement. For example in a DC circuit there are no waves, but the Poynting vector shows that energy is transported through the static field.
 
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Energy is certainly stored in a static electric field, but if it has to be transported, it has to be either by EM waves, or through a current carried by charged particles (electrons)
 
Chandra Prayaga said:
Energy is certainly stored in a static electric field, but if it has to be transported, it has to be either by EM waves, or through a current carried by charged particles (electrons)
Nope. Calculate the Poynting vector for a DC circuit. There are no waves and the energy is carried by the field not the current.

http://depa.fquim.unam.mx/amyd/arch...ia_a_otros_elementos_de_un_circuito_20867.pdf

https://www.tu-braunschweig.de/Medien-DB/ifdn-physik/ajp000782.pdf
 
I know this is late, and I might be a little off the comprehension track, but in that quotation from "Quantum physics ...etc." by Resnick, isn't the author alluding to the duality ... i.e. does an electron (functioning in the same manner as a photon of light) behave as a wave or a particle at the sub-atomic level.
 

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