How are electrons "pulled"? I'm currently trying to learn about electricity, and I understand that in a circuit, the electrons will go from the negatively-charged pole to the positively-charged one in order to restore the balance. But I can't grasp how the electrons "feel" the imbalance all the way at the other end of the copper wire. What pushes the very first electron out of the negative side? How does that electron "know" where to go? I know this is a n00bish question, but I really want to understand this!