Students view drawings of the dc analysis of a voltage-divider biased NPN transistor.

Learners view the operation of an NPN transistor in the active region.

This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.

Students examine how to interpret resistor color code bands to determine resistance values and tolerance ranges. This interactive learning object has audio content and includes exercises.

Students complete 10 practice problems.

In this animated object, learners examine how the rotation of an induction AC motor's armature slips behind the synchronous rotational speed of the stator's field to create magnetic fields. These fields interact and produce torque. A quiz completes the activity.

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

Learners examine the fundamental operation of a difference operational amplifier. A brief quiz completes the activity.

In this animated activity, learners examine the conversion of electrical energy into an electrostatic charge within the dielectric material of a capacitor.

Learners read an explanation of how the Magnetron Ignition System uses a solid state switching component, a step-up transformer, and magnetism to provide a high voltage spark in a one-cylinder combustion engine.

Students examine the operation of synchronous and asynchronous inputs on a JK Flip-Flop.

Learners perform the steps required for the Ziegler-Nichols Reaction Curve Tuning Method. The process identification procedure is performed, calculations are made, and the proper PID values are programmed into the controller.

This animated lesson shows how a ladder circuit uses timer-on delays to cause an extrusion machine to operate.

Learners examine the operation of positive and non-positive displacement compressors used in pneumatic systems.

This interactive object is designed to help learners memorize schematic symbols used in pneumatic diagrams. Learners quiz themselves using electronic flashcards.

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

The learner views the operation of a transistor switching from saturation to cutoff. A brief quiz completes the activity.

Learners study the fundamental operation of a triac, particularly how it is turned on and off. A brief quiz completes the activity.

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.

In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.

In this interactive object, learners answer 25 questions regarding part or assembly drawings. The basic areas of blueprint reading are covered.

Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.

Learners follow steps to convert numbers from Gray code to binary code. They then view steps to change binary values to Gray code numbers.

Students complete 10 practice problems. These deal with the determination of series current, zener current, and load current, and if the zener diode is operating in the breakdown region.

Students complete a sample exam for DC/AC I. It provides an overview of the material presented in the course.