In this tutorial the concept of electric potential difference is discussed. Electric potential is the amount of electric potential energy per unit of charge that would be possessed by a charged object if placed within an electric field...

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

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

This article provides information regarding Nikola Tesla, inventor, electrical engineer, mechanical engineer, physicist, and futurist best known for his contributions to the design of the modern alternating current electricity supply...

Learn here about Nikola Tesla, nventor, electrical engineer, mechanical engineer, physicist, and futurist best known for his contributions to the design of the modern alternating current electricity supply system.

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.

Find out about the German physicist and mathematician whose work in the field of electrical current shaped the study of electricity.

Learn how Hans Christian Oersted's discoveries in electricity led him to discover electromagnetism.

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

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

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

Lord Kelvin (William Thomson) developed electrostatic theory and a range of novel and interesting electrostatic apparatuses. Described here is a reconstruction of a water dropper electrostatic generator. It's capable of generating...

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.

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

Explains Ohm's Law which is the mathematical relationship between electric current, resistance, and voltage.

Generating technologies for deriving electrical power from the ocean include tidal power, wave power, ocean thermal energy conversion, ocean currents, ocean winds and salinity gradients. Of these, the three most well-developed...

Learn about Andre Marie Ampere, one of the founders of the science of classical electromagnetism, which he referred to as electrodynamics.

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

Explains electromagnetism, the difference between a permanent magnet and an electromagnet, uses of electromagnetism, and steps for making a simple electromagnet.