Learners review the VDR and work six problems. Immediate feedback is given.

Learners examine the operation of a proportional control amplifier and the two ways that it is programmed using proportional gain or proportional band. A brief quiz completes the activity.

Learners examine the fundamental concepts of sequencer output instruction. A simulated example shows a sequencer in operation.

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.

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

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

In this learning activity you'll read introduction to electrical quantities, units, and symbols and test their knowledge in a matching exercise.

In this animated activity, learners examine how a voltage is induced into a conductor when the conductor cuts across magnetic flux lines. They also view the four factors that determine how much voltage is generated. A brief quiz completes the learning object.

In this learning activity you'll explore the operation of frequency division using several different types of counters.

Students are introduced to the non-inverting amplifier configuration. The formulas for closed loop gain and bandwidth are shown, and an example is given.

Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes the activity.

In this animated activity, learners see that changing the resistance value of the load in the secondary of a transformer causes current to vary in the primary.

Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.

In this interactive and animated object, learners examine the construction of a 7493 IC as mod-2 and mod-8 up-counters. They view how this binary counter can be modified to operate at different modulus counts. A quiz completes the activity.

Students view several examples of how to determine the total impedance of a series circuit. The "j" term is used in all of the calculations.

Learners examine how an electromagnet is formed. Animated illustrations show current running through a coil wrapped around an iron core.

Learners follow step-by-step instructions for calculating the square root of a number using the TI-83 Plus scientific calculator. Steps for determining impedance are also shown.

Learners examine three formulas than can be used to find dc power. Examples are given.

Students read a definition of Kirchhoff's Voltage Law and view examples of its use.

Learners answer 14 questions about series-parallel DC circuits.

The approach to dc circuit analysis is presented to the learner. The approach is demonstrated for the student.

Learners read work instructions and view a drawing for turning between centers on a lathe.

In this animated activity, students view the plastic pellets in a profile extrusion machine being melted as the temperature of the heating elements is elevated by a time proportioning control system.

Learners review surface finish basics and read how to calculate the roughness average.