This tutorial is devoted to an understanding of electric potential difference and its application to the movement of charge in electric circuits. Take the interactive quiz to assess your understanding.

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

This site from Georgia State University defines electric potential energy and relates it to the concept of electric potential. Discusses the idea of a reference point or a zero potential location.

In this interactive tutorial students will learn about electric potential and the principle of superposition. They will discover how superposition applies to electric fields and how electrostatic potential energy relates to electric...

Explains the concept of electric potential difference and how it is calculated.

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 tutorial visits the concept of power. You will learn to develop new equations that express power in terms of current, electric potential difference and resistance.

Practice identifying the correct placement of voltmeters and ammeters to measure an unknown circuit or electric potential difference for a circuit.

Four complete lessons on current electricity in the study of physics. Lessons include informational text, interactive activities, animations, and quick, interactive comprehension checks.

This is a Java tutorial showing the simple voltaic (or galvanic) electrical cell, which is the most basic type of "wet" cell and demonstrates the fundamental chemistry behind batteries.

This site from the Georgia State University explains the concept of electric potential about a point charge or combination of severat point charges. An interactive JavaScript form allows the visitor to investigate the effect of distance...

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.

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...

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

Explains electrical resistance and how it is measured using the formula for Ohm's Law.

Interactive lecture discusses internal resistance which provides help to students in developing an accurate model.

A brief article from The Great Idea Finder.

An electron traveling through the wires and loads of the external circuit encounters resistance. In this tutorial, the concept of resistance is introduced. For an electron, the journey from terminal to terminal is not a direct route....

[Free Registration/Login may be required to access all resource tools.] This lesson looks at what voltage is and how to solve problems involving voltage. Includes a simulation for exploring how charges work in an electric field.

What four arrangements would result in the successful lighting of a lightbulb? And more importantly, what does each of the four arrangements have in common that would lead to an understanding of the two requirements of an electric...

This lab was designed to help students understand the difference between circuits powered by DC and circuits powered by AC. Students can see that simple changes in frequency lead to changes in the potential difference across the...

This lab was designed to help students understand the difference between circuits powered by DC and circuits powered by AC. Students can see that simple changes in frequency lead to changes in the potential difference across the...

A simulation investigating a parallel-plate capacitor which is charged by connecting one plate to the positive end of a battery, and the other plate to the negative end. The battery sends electrons from one capacitor plate to the other...

Practice calculating potential difference, resistance, and current for a component from a circuit diagram.