In this animated activity, learners examine the firing circuits in a DC variable speed drive. The circuits cause the current flow through the armature and rpm to vary. This activity has audio content.

The learner will examine the basic characteristics of the operational amplifier integrated circuit and solve for Vout.

Students solve problems on the determination of total capacitive reactance of series-parallel capacitors.

In this animated object, learners examine automated manufacturing systems classified as motion control, batch process control, and continuous process control.

Students work six practice problems to determine the total impedance of a parallel circuit.

Students read a description of the function generator and view a graphic that labels its parts.

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

Learners examine the concept of propagation delay within a TTL logic gate. The concept is explained with the use of timing diagrams and sample calculations.

In this learning activity you'll describe the operation of a logic inverter using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

Students read an introduction to the Metal Oxide Semiconductor Field Effect Transistor. They also examine its enhancement mode.

In this animated lesson, learners examine sine waves and alternating current. A brief quiz completes the object.

This document is a visual and text description of metric thread cutting on a lathe.

In this animated object, learners examine the operation of up-counters and down-counters for a programmable controller. A brief quiz completes the activity.

Learners examine the process for determining the total inductance of a parallel circuit. They then complete practice problems.

2D and 3D views used to help convey information from a drafter or designer to the welder are provided. This activity will focus on a three-step block. A short quiz to test your ability to correctly read this information follows.

Learners view the operation of the 7485 integrated circuit magnitude comparator in this animated object. A quiz completes the activity.

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

The use of the reciprocal key on the TI-86 scientific calculator is demonstrated in the solution of parallel resistors.

This animated lesson shows how pushing a start or stop button on a ladder circuit causes the cylinder of a hydraulic circuit to extend and retract.

This project gives a drawing with steps to complete the activity.

In this learning activity you'll explore the Marvel PCII keys.

In this interactive and animated object, learners examine how dc voltages develop across capacitors that are connected in series and in parallel.

The schematic symbols of logic gates used in digital circuits are shown.

In this animated activity, learners examine the circuitry in a DC variable speed drive that causes the motor to accelerate or decelerate at slow rates. This learning object has audio content.

In this learning object you'll explore some frequently asked questions concerning steel rule usage.