Final answer:
When two objects with different charges are brought together, they attract each other due to electrostatic forces, as described by Coulomb's Law.
Step-by-step explanation:
If two objects have different charges, one being positive and the other negative, and they are brought close together, what would happen is B) They would attract each other. This attraction is due to Coulomb's Law, which states that unlike charges attract each other. This fundamental principle of electrostatics explains why negative charges (electrons) are attracted to positive charges (protons), and vice versa. It's also important to note that if the objects had the same charge, either both positive or both negative, they would repel each other as like charges repel.
For example, if a negatively charged rod is brought near two metal balls that are touching each other, the balls will become polarized, with the side of the balls closer to the rod gaining positive charge due to the attraction of their positive components (protons) towards the negatively charged rod. If one of the balls is then grounded while the rod is still nearby, it will effectively lose its excess charge, leaving it neutral or slightly positively charged if excess electrons are removed.