Learn anything you ever wanted to know and more about electrical circuits here. Complete with in-depth explanations and detailed diagrams.

When two or more electrical devices in a circuit are connected, it is known as a series connection or a parallel connection. When all the devices are connected using parallel connections, the circuit is referred to as a parallel circuit....

Explains what a combination circuit is, reviews the features of series and parallel circuits, and demonstrates how to analyze combination circuits. Includes detailed examples and some problems for students to try. There is also a link to...

This tutorial illustrates how the flow of water through a system of pipes can be used to understand the flow of current through an electric circuit.

There are certain formulas in physics that are so powerful and so pervasive that they reach the state of popular knowledge. The predominant equation which pervades the study of electric circuits is often referred to as the Ohm's law...

Some history behind the function of the circuit board, with a guided activity guide for students to download.

This article helps students understand the concepts of electricity and circuits.

A current can be induced in a conducting loop if it is exposed to a changing magnetic field. (Java tutorial)

Alternating current behaves differently, depending on what components are in a circuit.

In this electronics science fair project, students will make a simple dimmer switch and investigate the relationship between the resistance in the circuit and the amount of light produced. The Science Buddies project ideas are set up...

Review the components of a circuit and their symbols such as battery, resistor, and switch. Analyze how the power of a resistor is related to the current and electric potential difference across the resistor.

When measuring the current in parallel circuits, compare the circuit's total current with the current through just one resistor.

This tutorial illustrates how a galvanometer, an instrument that detects and measures small amounts of current in an electrical circuit, works. (Java tutorial)

This simulation is about an oscillatory electromagnetic circuit formed by a capacitor and an inductor.

Magnetic shunts are often used to adjust the amount of flux in the magnetic circuits found in most electrical motors. (Java tutorial)

At this site from Georgia State University parallel and series connections of resistors are explained and illustrated. Equations for computing the overal voltage, current, and resistance of such circuits are given and explained.

A discussion of various principles related to voltage. The operation of battery testers and voltmeters are explained. The importance of the internal resistance of a power source is discussed.