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...

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.

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 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.

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

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.

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