Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.

In this animated lesson, students read an analogy comparing water in a "special" water tank to the current "flow" through a capacitor.

In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.

In this interactive object, students calculate capacitive reactance, phase angle, impedance, and power in series RC circuits.

Learners study the factors that determine the frequency of an AC generator, such as the rotational speed of the armature or the number of stator poles.

Students view the mathematical expression of an AC waveform with respect to time (t) and read about the different components of this expression.

In this interactive object, students calculate inductive reactance, impedance, current, and power in parallel RL circuits.

Students view the design and function of an ac model for a transistor circuit.

In this animated learning object, students view the operation of an oscilloscope that is used to measure AC voltages. A brief quiz completes the activity.

The learner solves for Zin(base), Zin(stage), Zout, and Av. A "help" screen is available.

In this 3D animated object, learners examine the way in which a three-phase generator produces three sine waves with three armature coils. A quiz completes the activity.

Students read an explanation of power factor correction. Examples of both inductive and capacitive loads are given.

In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.

The learner views a method to find the total complex power of a circuit in which the individual real and reactive powers are found and then added together. Several examples are shown, along with the power triangles.

In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.

Students calculate current, phase angle, resistor voltage, inductor voltage, and power.

In this interactive object, students calculate capacitive reactance, impedance, current, and power in parallel RC circuits.

In this animated object, learners study the rotation of the magnetic stator field of an AC motor and how it interacts with the armature to cause rotation. A short quiz completes the activity.

Students solve five problems to determine the total impedance of a series-parallel circuit. Immediate feedback is given.