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icvotria
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What actually is charge? Hmm, I'm trying to think of a way to elaborate the question to make myself sound a bit more intelligent but I can't so I'll have to just live with ignorant and curious
icvotria said:Hmm, I'm trying to think of a way to elaborate the question to make myself sound a bit more intelligent
dextercioby said:For a 13-yr old,i guess there's nothing more to say than:"along with rest/invariant mass and spin,one of the fundamental properties of matter".
Daniel.
dextercioby said:Of course,i meant "Yo,mamma!".He's 13.
There's no problem with that.There's no such thing as "field lines" at quantum level.Incidentally,the energy of the electron field vacuum is taken to be zero in the theory of the Dirac field and in QED,the electron self-energy diagrams are renormalized.
As for the second,could u ascribe an equation to it ?
Daniel.
roger said:What did you mean there's no such thing as field lines at quantum level ?
H=vector product v *d(flux density vector)
Also, why do we assign epsilon0 permittivity to vacuum, ? what is there to resist flow of charge ?
And how does the electric potential exist in the vacuum ? it can be measured..
Roger
in most general terms, charge is a measure of how strong two charged particles interact with each other via the Electromagetic forces, like the Coulombforce for electrical charges.icvotria said:What actually is charge? Hmm, I'm trying to think of a way to elaborate the question to make myself sound a bit more intelligent but I can't so I'll have to just live with ignorant and curious
marlon said:in most general terms, charge is a measure of how strong two charged particles interact with each other via the Electromagetic forces, like the Coulombforce for electrical charges.
That's what I meant to say~() said:hmmmm,
a charge quantised by QM illustrates an assembly of photons...
Is the charge around a electron a constant cloud, does it emit from the electron itself, does there need to be a picture for energy conservation ?
How do particles - the fields of EM actually work? How and why is charge able to attract - to repel, does this mean a special case for gravity since it can only attract ?
All interesting queries...
quasar987 said:Socrates is probably cursing in his grave right now.
Haelfix said:Magnetic charge (both Dirac, Polyakov and T'Hooft monopoles) of course is completely determined by the geometry within gauge fields. They are pure topological solutions (related to the first chern class), and incidentally if observed, would imply electric charge quantization (a really cool, simple result with the so called Dirac string accessible to undergrads).
Charge is a fundamental property of matter that determines how it interacts with electric and magnetic fields. It is measured in units of coulombs (C) and can be either positive or negative.
Charge can be created by the transfer of electrons between objects. For example, when two objects rub against each other, electrons may move from one object to the other, creating a charge imbalance.
Positive charge is the presence of more protons than electrons, while negative charge is the presence of more electrons than protons. Opposite charges attract each other, while like charges repel.
Charge creates an electric field, which is a force field that surrounds a charged object and can exert a force on other charged objects. The strength of the electric field is directly proportional to the amount of charge present.
No, charge cannot be destroyed. According to the law of conservation of charge, the total amount of charge in a closed system remains constant. Charge can only be transferred or redistributed, but it cannot be created or destroyed.