Learners alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

Learners examine the elements of a data file memory of an Allen-Bradley SLC-500 programmable controller. A quiz completes the activity.

Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.

In this interactive and animated object, learners examine the duty cycle of a squarewave produced by a multivibrator using a 555 IC (integrated circuit). A brief quiz completes the activity.

The learner will gain an understanding of the inner workings of the cycloidal gear drive while watching a video and listening to an explanation of its features.

Learners examine the information on a title block and answer questions about that information in an interactive quiz.

Learners test their ability to visualize a three-step block in this interactive exercise that features animated pictorial views.

The learner will understand how to correctly wire a three-wire sinking and sourcing sensor.

In this activity you'll identify several hazards in a welding environment.

Learners examine the relationship of voltage, current, and resistance as it applies to vehicle electrical systems.

The technique for designing a MOD 10 counter is introduced. Asynchronous inputs of a JK flip-flop are used to clear the counter.

Learners answer questions about ferrous metals and alloys using a game show format. Immediate feedback is provided.

In this interactive object, learners examine the PN sections of a diode and the diode's forward- and reverse-biased operations. A brief quiz completes the activity.

In this animated object, learners follow an analogy of water flowing through pipes and valves to see how resistance decreases in a parallel circuit as branches are added.

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.

In this interactive object, learners solve a series-parallel DC circuit analysis problem. Immediate step-by-step feedback is given.

Learners view the conversion factors within and between the metric, apothecary, and household systems. A quiz completes the activity.

Learners take a close look at the Edison Wire System and observe how the current values through the two lines and the neutral of the system change as the loads vary.

In this animated object, learners examine the operation of an optocoupler, specifically how it is connected to external components to provide interfacing and isolation and how it responds to excessive frequencies. A quiz completes the activity.

In this animated activity, students read about the two general types of variable resistors: potentiometers and rheostats. A brief quiz completes the learning object.

In this animated activity, learners examine how an electronic converter changes digital signals to analog signals. Sections of a synthesizer are identified, and the operation of a D/A converter is demonstrated.

Learners examine how a PLC Timer-Off instruction is used in the operation of an automotive paint booth.

Walk through the subscriber loop and learn how the signal travels from the central office to the subscriber.

Students follow step-by-step directions on how to make mathematical calculations for a Wheatstone bridge.

Learners will follow general tips and tricks for improving their basic welding technique.