This unit teaches students the foundations of electrical circuits and introduces them to their simplest components. Covers series and parallel circuits, Kirchhoff's Rules, Ohm's Law, RC circuits, resistivity, and capacitance.

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 can be connected, it is considered a series connection or a parallel connection. When all the devices are connected using series connections, the circuit is referred to as a series...

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...

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...

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

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.

Although specifically designed for physics students at Caltech, anyone interested in learning more about electricity, magnetism or various other physical phenomena can benefit by exploring these interactive applets. A circuit tutorial...

A teacher lesson plan which could be easily converted into an idea for a student project or presentation. This page describes an activity in which the water-electricity analogy is used to investigate the relationship between current,...

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

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

Find out how the SPARKS DMM can measure AC voltage and current.

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.

This site from the Human Genome Project provides a large collection of facts and information, demonstrations, experiments and project ideas. Written for teachers but easily adaptable for any type of student work. A good site to check out...

Soldering requires more skill than it looks. As with a lot of practical skills one learns a lot by trail, error and experience. Some tips are discussed here. These notes were written before regulations were introduced requiring solder to...

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

An absorption wavemeter is a device which can make measurements on the strength of radio emissions and so this instrument is an essential item for investigating the mobile phone. In principle an absorption meter is a simple device that...

James Prescott Joule experimented with engines, electricity and heat throughout his life. Joule's findings resulted in his development of the mechanical theory of heat and Joule's law, which quantitatively describes the rate at which...

This article from Khan Academy provides information about capacitors. This information is intended for the Class 12 Physics Course (India).

Although he didn't start studying physics until he retired from the clock-making business at age 30, French native Jean Peltier made immense contributions to science that still reverberate today. Even with the primitive tools available...