Electric current
Electricity is produced when an electron moves after being taken away from an atom. Review that atoms make up all matter. Atoms are usually electrically balanced, there are as many positive charges (protons) as there are negative charges...
Electric potential energy
Charges also have electrical potential energy. We learned that in work power energy chapter, objects have potential energy because of their positions. In this case charge in an electric field has also potential energy because of its...
Electricity has a very long history.The Greek philosopher Thales of Miletus (640 - 546 B.C.) is sometimes credited with being the first person to notice that amber will pick up bits of dry grass or straw if it is...
