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

Great site explores the physics behind an electrical guitar. Outlines process for conducting an experiment on sound vibrations and provides animated GIF movies showing the first five modes of vibration.

Review how an electric force behaves between like or opposite charges, and its dependence on separation distance and charge magnitude. Compare the electric force and gravitational force.

Overview of the key terms and skills related to electric charge, including how to calculate net charge.

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.

Review the key terms, equations, and skills related to Ohm's law, including how electric potential difference, current, and resistance are related.

Students learn about capacitors and inductors and their role in electrical circuits.

Described is a simple low cost home-made device that converts the radio wave energy from a mobile phone signal into electricity to light an LED. No battery or complex circuitry is required. The device can form the basis of a range of...

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

Review the key terms and skills related to Kirchhoff's loop rule, including how to determine the electric potential difference across a component.

Review the conservation of charge and how charge is transferred in various scenarios.

Review the key terms, equations, and skills related to current, resistance, and resistivity, including how to find the current direction and what resistance depends on.

Review the key terms and skills related to voltmeters and ammeters, including where to place them in a circuit.

Review the key terms and skills related to Kirchhoff's junction rule.

Review how to find the equivalent resistance for resistors in parallel and series configurations. Recall the current and voltage properties of series and parallel configurations of resistors.

This article discusses the properties of electromagnetic radiation and photons.