The components of an electrical or electronic circuit can be connected in many different ways. The two simplest of these are called series and parallel and occur very frequently. Components connected in series are connected along a single path, so the same current flows through all of the components. Components connected in parallel are connected so the same voltage is applied to each component. In this course, you will learn about the fundamentals of series and parallel circuits as well as how to calculate current, voltage, and resistance in them.