Learners examine the characteristics of a sine wave and the various ways to describe it including Vp, Vp-p, Vrms, Vavg, and frequency.

In this interactive object, learners determine the pulse width, period, duty cycle, and frequency of a waveform.

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.

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.

Students view the mathematical expression of a sinusoidal waveform with respect to time (t) and solve five problems. The answers are provided so students may check their work.

In this interactive object, learners answer nine questions about series and parallel circuits. Immediate feedback is provided.

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 animated activity, learners study the principle behind an inductor producing a high momentary voltage while its magnetic field collapses. A short quiz concludes the lesson.

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

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

Instructions on how to wire an integrated circuit are given.

Learners analyze an emitter-biased npn transistor circuit. A "help" screen is available.

Students follow the steps for finding the total impedance for a series-parallel circuit. Several examples are given.

Students read an explanation of the common-source and source-follower amplifiers. Gain formulas are developed and an example is given.

In this learning activity you'll review the operation of an Exclusive-NOR gate by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

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.

Learners read a step-by-step approach on how to connect an ohmmeter when making measurements in this interactive lesson.

Learners study an animation that shows how a battery charge reduces over time and when varying resistance values are placed in a series circuit. Ten review questions complete the activity.

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.

In this learning activity you'll review the steps for determining the total capacitance of a parallel circuit and work practice problems.

Students view the formulas to be used to convert a parallel impedance to a series impedance.

Learners examine first and second approximations and view examples of a "stiff" current source.

Learners examine the wiring of the primary components of the three types of DC motors, series, shunt, and compound. The operational characteristics of each type of motor are described. A quiz completes the activity.

In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.