This animated lesson shows how a ladder circuit causes the cylinder of a hydraulic circuit to continuously extend and retract after a Start button has been pressed.

In this animated learning object, students read about the operation of a half-wave rectifier.

In this animated object, learners examine an analog closed-loop feedback system that uses potentiometers to control the position of a gear rack.

In this learning activity you'll follow the process of converting digital data into a series of analog signals.

In this animated learning object, students examine current, voltage, and the magnetic field strength of a series RL circuit while it is de-energizing during five time constants. A quiz completes the activity.

This primer introduces the student to the correct method of using the internal memory of a TI-86 calculator.

This primer introduces the student to the proper use of the "EE" function to perform calculations on very large or very small numbers.

Using text and graphics, this learning activity describes a sine wave, including alternations, cycles, time, amplitude, and degrees

Learners examine the operation of an orifice plate flowmeter as it is used to make process control measurements. A brief quiz completes the activity.

Learners study the theory of operation for a ratio pyrometer that measures temperature. A short quiz completes the activity.

In this learning activity you'll explore the functions and proper operation of a digital multimeter.

Learners examine how a linear displacement transducer is used to measure the linear position of a physical object. Animations show the sequential steps of the entire operation.

In this screencast, learners examine the interaction between a conductor that represents a motor armature and a magnetic field that represents a motor’s main field. This interaction causes the shaft to turn.

In this animated object, learners examine cycles, frequency, Hertz, wavelengths, and periods. A brief quiz completes the activity.

This animated lesson shows the operation of timer-on and timer-off delay relays used in ladder circuit operate.

Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.

Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.

The learner will understand the operation and configuration of various types of PLC output modules and how they're used.

This learning activity presents information on how the type of material used for the dielectric of a capacitor affects the capacitor's value in farads.

By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a parallel LC circuit when the applied frequency increases from 0 Hz toward resonance.

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 read an explanation of "superposition" as a technique for ac circuit analysis. Complex numbers are used.

Learners follow procedures for measuring resistance using an analog ohmmeter. They examine the use of the Function Switch and the Range Switch and practice reading a non-linear scale. A brief quiz completes the activity.

Learners view an animation showing the operation of a Vortex flowmeter that is used to measure flow in a process control system.

In this animated object, learners examine the causes of air leaks and read how to repair them. The object includes audio.