Walter Fendt
Walter Fendt: Simple Ac Circuits
This simulation shows a simple circuit consisting of an AC voltage source and, depending on the button selected, a resistor, a capacitor or a coil.
Concord Consortium
Concord Consortium: Measuring Time and Frequency
The voltage in AC circuits oscillates at a rate known as the frequency. With an oscilloscope, see and measure the length of time between signals, and calculate the frequency of an AC signal.
CK-12 Foundation
Ck 12: Physics Simulation: Power Lines
[Free Registration/Login Required] Learn about the relationship between electric potential, current, and resistance in the context of high-voltage AC power lines using this interactive simulation. A PDF worksheet and a video tutorial are...
Boston University
Elementary Physics: Current and Resistance
A general summary of electrical resistance including a comparison of AC and DC current.
Creative Science Centre
Creative Science Centre: 6 Generators
Apart from the piezo generator, all of these generators are based on the same simple design, where magnets are rotated near to coils of wire (Faraday Induction). There is no coil switching so these are AC generators. On magnet movement,...
Tech Target
What Is: Resistance
A short summary of resistance and how it is measured. Including information on AC and DC.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Rc Circuit Model
An electrical circuit simulation modeling the behavior of a voltage source attached in a series to a resistor and capacitor.
Khan Academy
Khan Academy: Electrical Engineering: Circuit Analysis
Circuit analysis is the process of finding all the currents and voltages in a network of connected components. We look at the basic elements used to build circuits, and find out what happens when elements are connected together into a...
Concord Consortium
Concord Consortium: Sparks Tutorial: Finding the Cutoff Frequency
AC circuits with capacitors and inductors respond to the frequency, as well as the voltage. Find the frequency value that reduces the circuit power to half the maximum.
CK-12 Foundation
Ck 12: Fourth Grade Science: Physical Science: Electric Current
[Free Registration/Login may be required to access all resource tools.] Defines electric current and relates electric current to different materials (insulators and conductors).
Florida State University
Florida State University: Lenz's Law
Lenz's Law is defined and demonstrated with an interactive Java applet that shows the relationship between field lines of a magnetic and a conductor ring.