We use electrical circuits every day of our lives. Without them, we could not operate most of the machines—microwave ovens, computers, electric lamps—that we rely on for the most basic tasks. What most people don’t understand, however, is how simple electrical circuits really are. An electrical circuit is simply a route along which electricity can travel from a power source to the machine it is supposed to power. In this video, science teacher Steve Jones explains the basics of how an electrical circuit works. If your home is in need of electrical services for any reason, contact a licensed electrician serving Columbus, Ohio.