Understanding Charge: Types, Properties, and Mysteries Explained

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Charge is a fundamental property of matter, categorized into positive and negative types, but its exact nature remains elusive. The discussion highlights that while physics can describe the behavior of charged particles, it cannot definitively explain what charge is or why it exists. The interaction between charged objects, such as attraction and repulsion, can be described through theories like quantum electrodynamics, but these are based on observations rather than fundamental explanations. The conversation emphasizes the distinction between "how" and "why" in physics, noting that the latter often delves into philosophical territory. Ultimately, the nature of charge and its existence raises complex questions that blend scientific inquiry with philosophical exploration.
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Homework Statement


Charge is a physical property of matter.There are 2 types of charges,positive and negative.
However,what is charge?
We can see the effect of charge simply by taking a rod of hard rubber and rub it with fur.
But it appears that no one is able to define what exactly charge is.
Why did some subatomic particles possesses charges?Why does charge exists?
In addition,why there are only 2 types of charges,but not more?
Those questions really really confused me,can someone please explain them to me :( ?
Thx everyone.

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The Attempt at a Solution

 
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However,what is charge?
A property of particles.

Physics cannot answer "what" something is, that is philosophy. Physics gives a way to describe how something will behave.
 
Ok,I will try to accept it :O/,thx
There is still a question:
Could physics explain why 2 charged object will exert a force on each other?What causes them either to repel or attract?
 
Physics cannot explain "why" on a fundamental level. It can be described with very abstract theories (here: quantum electrodynamics), but those theories are always made to match the observations (like attracting and repelling charges).
 
A philisophical interjection !...Physics can 'answer' what...it does not require an answer, it is a description of observations.
Physics sets out to explain 'HOW' things happen.
Physics cannot answer 'WHY'... it is a bad question (God wills it to be so is the best answer)
 

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