We can see how circuits work, and represent them with some simple diagrams, using basic electrical components like these. You start with a cell, or combination of cells. These could be batteries ...

Modern telephones use the same basic principles as Bell's original ... that moves along a continuous and closed path called a circuit. Electric current flows easily through certain materials ...

Prior knowledge needed: Introduction to Circuits and Electronics (Basic Electronics), Linear Circuits, Microelectronics, Circuits as Systems and Introduction to Power Electronics Understand how to ...