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

Learners investigate current, resistance, and power. Some topics explored in the activities are Ohm's law, electrical power, and solving circuits. The resource consists of video clips, lecture notes, online textbook chapters, exam...

Student teams measure voltage and current in order to determine the power output of a photovoltaic (PV) panel. They vary the resistance in a simple circuit connected to the panel to demonstrate the effects on voltage, current, and power...

Uncountable times every day "with the merest flick of a finger"each one of us calls on electricity to do our bidding. What would your life be like without electricity? Students begin learning about electricity with an introduction to the...

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.

The Canada Science and Technology Museum answers some of the most common questions about electricity. For example, get the definition of electricity, the difference between alternating and direct currents, and learn how a fuse works.

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

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...

[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.

Students act as engineers to apply what they know about how circuits work in electrical/motorized devices to design their own battery-operated model motor vehicles with specific paramaters. They calculate the work done by the vehicles...

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

Students use potatoes to light an LED clock (or light bulb) as they learn how a battery works in a simple circuit and how chemical energy changes to electrical energy. As they learn more about electrical energy, they better understand...

Current transfers energy around circuits. Circuit components have various properties that can be measured and then used to make circuits for control and also circuits for testing other components.

A general summary of electrical resistance including a comparison of AC and DC current.

This site details many of the ways in which to measure electricity. Among the topics covered by this page is resistance and voltage as well as electrical energy and Ohm's Law.

Learn how to create electricity and your own electrical gadgets! Site provides users with information on how to make a battery, flashlight, buzzer an electric motor.

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.

Some basic concepts to introduce the electrical engineering course. Become familiar with engineering numbers and notation, and learn about the two most important electrical quantities: current and voltage.

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

Electricity goes through some ups and downs on its way from the power plant to your house. See how it works in this interactive activity.

What is power? Illustrated discussion of power including how it is measured and electrical power.

In this interactive tutorial students will learn about electric current, resistance and current density. Learn how current density relates to electric field strength and how resistance produces heat.

Students learn how engineers design devices that use water to generate electricity by building model water turbines and measuring the resulting current produced in a motor. Students work through the engineering design process to build...

Go on a fishing trip with Martin and his grandfather. They use a lot of electrical equipment. Help him find out which items use electricity.