An electric charge feels its own self electric field

In summary, the conversation discusses the concept of electric charges generating an electric field that can be felt by other charges, but not by the source charge itself. However, in reality, a charge does feel its own field. The discussion then delves into the Abraham-Lorentz force and the Feynman Lectures on Physics as potential resources for further explanation.
  • #1
fog37
1,568
108
Hello,

In classical electromagnetism, we learn that an electric charge generates and electric field which other charges can feel through a force. But the source charge does not feel its own generated electric field.

In reality, a charge feels its own field. Why are we able to ignore this effect? Is it truly small for all practical purposes?

Thank you!
 
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  • #2
fog37 said:
In reality, a charge feels its own field.

How do you know this?
 
  • #3
Well, I was reading something about the Abraham-Lorentz force. But I need to read more before I can share more explanations...
 
  • #4
The Feynman Lectures on Physics, Volume 2, Chapter 28, has an excellent introduction to this question. , which is very readable, although perhaps somewhat dated. It is available for free online here.

http://www.feynmanlectures.caltech.edu/II_28.html
 
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Likes Thomas Tucker

What is an electric charge?

An electric charge is a fundamental property of matter that causes it to experience electromagnetic interactions with other charges. It can be positive or negative, and is measured in units of Coulombs (C).

What is a self electric field?

A self electric field is the electric field generated by a single charge in its surrounding space. It is a fundamental property of electric charges and is responsible for the force between two charges.

How does an electric charge feel its own self electric field?

An electric charge feels its own self electric field because it is the source of the field. The charge creates the field through its own presence and motion, and therefore, it is affected by the field.

What is the significance of an electric charge feeling its own self electric field?

The self electric field is crucial in understanding the behavior of electric charges and their interactions with other charges. It helps explain the forces between charges, as well as the behavior of charged particles in electric fields.

Can the self electric field of a charge be measured?

Yes, the self electric field of a charge can be measured through various techniques, such as using a charge detector or measuring the force between two charges. It is an important aspect in experimental studies and theoretical calculations involving electric charges.

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