what does simple circuit contain
- Below is a basic set of symbols that you may find on circuit diagrams. 1  It is very important to know the basic parts of a simple circuit and the symbols that relate to them. A simple circuit has conductors, a switch, a load and a power source. 2  Conductors: These are usually copper wires with no insulation. What is a Circuit? Welcome to circuits 101! One of the first things youâll encounter when learning about electronics is the concept of a circuit. This tutorial will explain what a circuit is, as well as discuss voltage in further detail. A simple circuit, involving a button, an LED, and a resistor, built two different ways. Suggested Reading There are a few concepts you should have a good understanding of to help you get the most out of this tutorial.