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 ...

Amplifiers and oscillators are important circuits that appear in many different configurations and perform many different functions in modern electronics. Most amplifier and oscillator circuits were ...

Active components rely on an external power source to control or modify electrical signals ... One of the main uses of resistors is to regulate the current in circuits containing LEDs and transistors.

A review of electrical quantities, Ohm's law, circuit elements, series and parallel combination ... No problems are presented for solution in this chapter. It is intended as a basic review of material ...