First of all, I'm sorry for any grammatical big error - English is not my native language.
I have a question that maybe does not have an answer beyond those which we already have, but maybe there is someone who can help me understand deeper than high-school level: what is exactly an electrical charge?
I already know something is charged (negative or positive) when it attracts or repulses another object or particle. But, stoping at that point, the electrical force coming from a charged body seems like magic.
I know it's analog to gravity: given at least 2 bodies with really big masses, they will one attract each other. So to friction/rubbing (similar forces to opposite sides)... But, why do all these happen?
Sintetizing: what exactly produces electrical attraction or repulsion? How can a particle move itself in one or another direction depending its "charge"?
Sorry for confusion... Thanks