TeachEngineering
Teach Engineering: Get Charged!
Students are introduced to the idea of electrical energy. They learn about the relationships between charge, voltage, current and resistance. They discover that electrical energy is the form of energy that powers most of their household...
Concord Consortium
Concord Consortium: Dc Circuits: Series Parallel Resistances (Sparks 3)
Answer questions regarding voltage drops across resistors and currents through them in such circuits. Practice calculating the effective resistances of a set of resistances in series and parallel.
Wikimedia
Wikipedia: Ohm's Law
Wikipedia provides information on Ohm's Law, stating that the voltage drop is proportional to the current running through it.
University of Waterloo (Canada)
Computer Assisted Chem. Tutorial/chemistry of Batteries
A superb explanation of how a battery works. Discusses the associated chemistry which explains how a battery produces a voltage. Includes a series of "Confidence Building Questions."
Sophia Learning
Sophia: Electric Circuits: Lesson 3
This lesson will explain how to calculate voltage, current, and resistance in simple electric circuits. It is 3 of 4 in the series titled "Electric Circuits."
TeachEngineering
Teach Engineering: Completing the Circuit
In the everyday electrical devices we use - calculators, remote controls and cell phones - a voltage source such as a battery is required to close the circuit and operate the device. In this hands-on activity, students use a battery,...
Physics Aviary
Physics Aviary: Simple Circuit Lab
This lab is designed to have students investigate the relationships between voltage, resistance and current in a circuit with only one passive component. The batteries in this simulation can be varied from ideal batteries to batteries...
Physics Aviary
Physics Aviary: Parallel Circuit Lab
This lab is designed to have students investigate the relationships between voltage, resistance and current in a parallel circuit with up to three passive components. The batteries in this simulation can be varied from ideal batteries to...
Concord Consortium
Concord Consortium: Dc Circuits: Parallel Resistances (Sparks 2)
Explore circuits with resistors in parallel and answer questions regarding voltage drops across resistors and currents through them in such circuits.
Concord Consortium
Concord Consortium: Dc Circuits: Series Resistances (Sparks 1)
This interactive simulation guides you through the wiring of the standard breadboard and presents you with questions regarding voltage drops and currents in series resistive circuits.
Other
Beginner's Guide to Measurement in Electronic and Electrical Engineering [Pdf]
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.
Other
Need: Measuring Electricity [Pdf]
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.
Physics Aviary
Physics Aviary: Practice Problems: Lc in Ac Problem
Determine the rms current in an LC circuit powered by an AC power supply. Then find the frequency that will cause a spike in current in the circuit.
Famous Scientists
Famous Scientists: Georg Ohm
Find out about the German physicist and mathematician whose work in the field of electrical current shaped the study of electricity.
CK-12 Foundation
Ck 12: Physics Simulation: Electric Analogies
[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...
CK-12 Foundation
Ck 12: Physics Simulation: Flashlight
[Free Registration/Login Required] Learn about electric circuits, the flow of current, electrical resistance, and electrical power dissipation by exploring the operation of a flashlight using this interactive simulation. A PDF worksheet...
University of Colorado
University of Colorado: Ph Et Interactive Simulations: Circuit Construction Kit (Ac+dc)
This new version of the CCK adds capacitors, inductors and AC voltage sources to your toolbox! Now you can graph the current and voltage as a function of time. Java required.
Science Buddies
Science Buddies: How Far Can Sparks Jump?
Piezoelectric barbecue fire starters work by creating a spark that ignites the volatile lighter fluid, which then starts the charcoal burning. They are low current, high voltage devices. This project shows you a way to find out by with...
Physics Classroom
The Physics Classroom: Current Electricity: Circuit Connections: Series Circuits
When two or more electrical devices in a circuit can be connected, it is considered a series connection or a parallel connection. When all the devices are connected using series connections, the circuit is referred to as a series...
TeachEngineering
Teach Engineering: Introduction to Circuits and Ohm's Law
Students will explore the basics of dc circuits analyzing the light from light bulbs when connected in series and parallel circuits. Ohm's Law and the equation for power dissipated by a circuit will be the primary equations used. Using...
Chiral Publishing
Chiral Publishing: An Introduction to Chemistry: Voltaic Cells: Audio Book
Listen and learn how the battery converts energy using voltaic cells. Learn how anodes and cathodes aid in oxidation and reduction. Discover how voltage and electrolysis direct the current.
Georgia Department of Education
Ga Virtual Learning: Physical Science: Electricity and Magnetism
Students learn about static electricity using terms such as friction, induction, and conduction. They also explain and illustrate the difference between alternating and direct current, and understand the relationship among voltage,...
TeachEngineering
Teach Engineering: Potato Power
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...
TeachEngineering
Teach Engineering: Ohm's Law I
Students will work to increase the intensity of a light bulb by testing batteries in series and parallel circuits. It analyzes Ohm's Law, power, parallel and series circuits, and ways to measure voltage and current.