How does a particle detect the presence of another?

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Discussion Overview

The discussion revolves around how particles detect the presence of other particles and determine whether to attract or repel each other without direct interaction. It explores concepts related to field theory and the nature of forces between charged particles.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions how a particle can detect another and decide whether to attract or repel without direct interaction.
  • Another participant introduces the "field theory" model, suggesting that particles create fields (e.g., electric fields) that extend outwards, allowing distant particles to experience forces based on these fields.
  • A further inquiry is made about how particles differentiate between positively and negatively charged counterparts and how they determine the exact force to apply, indicating a potential gap in understanding.
  • Another participant supports the field theory explanation, stating that the magnitude and direction of the fields provide information on the force experienced by the particles, depending on their charge.

Areas of Agreement / Disagreement

Participants present multiple viewpoints regarding the mechanisms of particle interaction and detection, with no clear consensus reached on the underlying principles or the specifics of the interactions.

Contextual Notes

The discussion includes assumptions about the nature of fields and forces, but does not resolve questions about the exact mechanisms of detection and force application.

Shreyas Shree
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How does a particle detect the presence of another? And also how does it know whether to attract or to repulse without even interacting with one another?
 
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How does it differentiate between +vely and -vely charged particles? And know the exact force to be applied on the particle; not more, not less: just exact? is there something i am really missing out?
 
as robfy said, through the fields. their magnitude and direction convey the information of how much force to experience and in which direction depending on whether the particle experiencing them is negatively or positively charged.
 

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