[Free Registration/Login may be required to access all resource tools.] Explains what electric current and voltage are and why electric current occurs.

This tutorial introduces the concept of electric currents. Take the interactive quiz to assess your understanding.

Students have the opportunity to explore the basics of current and circuits in this online module. Some of the activities include interactive animations, informational text, practice problems, and lab experiments.

[Free Registration/Login may be required to access all resource tools.] The definition of electric current is explained and how to calculate an electric current. Includes links to resources for learning more about electricity, i.e., a...

[Free Registration/Login may be required to access all resource tools.] Students learn how a magnetic field affects moving charged particles or an electric current carried by a wire.

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

Giving numerical values for physical quantities and equations for physical principles allows us to understand nature much more deeply than does qualitative description alone. To comprehend these vast ranges, we must also have accepted...

The National Physical Laboratory, which is the UK's National Measurement Institute, offers a Beginner's Guide to Measurements in Electronics and Electrical Engineering. Discusses how electric currents are measured and offers images.

A study guide covering electrical systems.

In this unit students discover the meaning and some applications of electric potential, commonly known as voltage, and how it powers some simple circuits.

Find out which material will save Steve from getting shocked by the electric eels. Following the activity, read more about electrical conductors, and then take a quick quiz to check for understanding.

[Free Registration/Login Required] Explore a different way of thinking about electricity as a way to become familiar with the concept of potential, current, and resistance using this interactive simulation. A PDF worksheet and a video...

[Free Registration/Login may be required to access all resource tools.] Electric power and electric energy use of appliances and how to calculate them.

[Free Registration/Login may be required to access all resource tools.] Students are introduced to the ammeter, which measures electrical current, and to the voltmeter, which measures voltage.

[Free Registration/Login may be required to access all resource tools.] Covers electronic signal, how an electric current can be used to send an electronic message, what analog and digital signals are, and the difference between them.

This Nobel E-Museum website commemorates the work of Philipp von Lenard and his Nobel prize achievement. This detailed resource includes a biography, Lenard's Nobel Lecture, and the "The Nobel Prize in Physics 1905 Presentation Speech."

At this site from Georgia State University Ohm's law is stated in words and using equations. A JavaScript form allows for multiple practice problems with instant feedback and reinforcement. Kirchoff's current law is stated and...

Build an intuitive understanding of current and voltage, and power.

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.

Simulate the movement of a rail gun in this interactive model. Learn how a magnetic field is generated by running electrical current through long rods that accelerates a current-carrying cross-rod.

[Free Registration/Login may be required to access all resource tools.] Explores electrical conductors and insulators and the path of least resistance.

[Free Registration/Login may be required to access all resource tools.] Overview of electric safety: short circuits, electric safety features, and how to use electricity safely.

[Free Registration/Login Required] Learn how magnetic forces acting on current-carrying wires can be used to drive an electric motor using this interactive simulation. A PDF worksheet and a video tutorial are also available. [2:47]

[Free Registration/Login may be required to access all resource tools.] This lesson explains how an electric current is produced by a generator. Includes a simulation.