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4.1. Electrical circuit

An electrical circuit is an unbroken path along which an electric current can flow from the starting point to the end point, for example, from plus to minus. Electrical circuits can contain resistors, diodes, transistors, motors, and more. The scheme can contain a huge number of such elements.

Fig.4.1. Electrical circuit

Circuits are generally divided into three categories: analog circuits, digital circuits, and mixed-signal circuits. In this guide, you will explore all three sets of circuits.