Total Electric Charge: Is Our Universe's Zero?

AI Thread Summary
The discussion centers around the question of whether the total electric charge of the universe is zero. Participants express uncertainty, noting that no confirmed theory currently proves or disproves this assertion. The conversation highlights two critical factors: the validity of charge conservation in all reactions and the initial conditions of the universe. While the conservation of charge can be tested, the initial conditions remain speculative and untestable, complicating any definitive conclusions. Additionally, the topic of matter versus antimatter is raised, with participants acknowledging that this imbalance also lacks a confirmed theoretical explanation. Overall, the thread reflects a mix of curiosity and skepticism regarding fundamental questions in physics.
Fe-56
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Do you think the total electric charge of Our Universe is zero?
 
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Fe-56 said:
Do you think the total electric charge of Our Universe is zero?
i'd rather ask: "why do you think that it is (non-)zero?"
 
Because no confirmed theory can prove or disprove yes or no answer to this question.
Also, why is there more matter then antimatter in Our Universe?
 
Fe-56 said:
Because no confirmed theory can prove or disprove yes or no answer to this question.

huh! i hope that the poll results here and now, on physicsforums, will finally give the answer to this question!
 
I have also voted yes :)
 
This depends on two things, I guess:

1) The validity of conservation of charge in all reactions.
2) The initial conditions of the universe.

The first is testable, but the second probably isn't, so I don't think I can even guess.
 
I was using the Smith chart to determine the input impedance of a transmission line that has a reflection from the load. One can do this if one knows the characteristic impedance Zo, the degree of mismatch of the load ZL and the length of the transmission line in wavelengths. However, my question is: Consider the input impedance of a wave which appears back at the source after reflection from the load and has traveled for some fraction of a wavelength. The impedance of this wave as it...
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