Determining continuity using Gauss' law

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Discussion Overview

The discussion revolves around the application of Gauss' law in determining the continuity of electric fields at points influenced by surface and volume charge distributions. Participants explore whether Gauss' law can be used to identify discontinuities in electric fields and seek alternative methods for proving continuity in various charge distributions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that Gauss' law can help calculate discontinuities at points on the surface of a surface charge and questions its applicability to other points of electric field due to surface or volume charges.
  • Another participant asserts that the normal component of the electric field experiences a jump at a surface charge, while a non-singular volume-charge distribution does not exhibit discontinuities.
  • A participant asks if the absence of discontinuities in a non-singular volume-charge distribution can be proven using Gauss' law.
  • One participant proposes using the "Gauss pill-box argument" to demonstrate continuity in the context of a non-singular charge distribution.
  • Another participant expresses a need for clarification on the topic and indicates they will return with further questions.
  • A participant inquires about alternative methods to prove continuity without relying on Gauss' law.

Areas of Agreement / Disagreement

Participants generally agree that a non-singular volume-charge distribution does not have discontinuities, but there is no consensus on the methods to prove this or the applicability of Gauss' law in different scenarios.

Contextual Notes

Some assumptions regarding the definitions of singular and non-singular charge distributions are not explicitly stated. The discussion also reflects varying interpretations of Gauss' law and its implications for electric field continuity.

Mike400
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I know how Gauss law helps us to calculate the discontinuity at a point on the surface of a surface charge.

Similarly using Gauss law, is there a way to determine the continuity at other points of electric field due to a surface charge or the continuity at all points of electric field due to a volume charge?
 
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I don't understand the question. If there's a surface charge, the normal component of the electric field jumps by that surface charge (modulo some factors depending on the system of units). If you have a non-singular volume-charge distribution there are no discontinuities.
 
vanhees71 said:
If you have a non-singular volume-charge distribution there are no discontinuities.
Can we prove it using Gauss law?
 
Sure, just use the "Gauss pill-box argument" to a situation where you have a non-singular charge distribution.
 
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Thanks a lot... Anyway I have to clear some confusions regarding that. I will post my confusions tomorrow... I am so sleepy
 
vanhees71 said:
If you have a non-singular volume-charge distribution there are no discontinuities.
Are there any other simple methods to prove it without using Gauss law?
 

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