What is a Circuit?

Contributors: MikeGrusin

Overview

Welcome to circuits 101! One of the first things you'll 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.

Suggested Reading

There are a few concepts you should have a good understanding of to help you get the most out of this tutorial.

• What is Electricity?
• Electric Power
• Voltage, Current, Resistance, and Ohm's Law
• Alternating Current (AC) vs Direct Current (DC)
• Polarity