What is an electric circuit? An electric circuit is a mathematical model to approximately representat an actual or physical electrical system. From the electrical circuit representation or model, the behavior of the electrical system can be analyzed. Scenarios such as normal operation, open circuit or short circuits can be simulated using the mathematical model.

A electric circuit consists of electrical elements connected together. Electric circuits are used to solve problems that are important to modern society.

In the next segments of EE101 -Electric Circuit, we will be discuss about current, voltage and power of electric circuits in a Direct current (DC) and Alternating current (AC) circuits.