In this learning activity you'll analyze the costs of rent-to-own buying plans and compare those plans to other consumer strategies.

Explore what referential integrity is, why it's important to reliable data organization, and learn how it enforces constraints.

This learning object describes the production of an alternating current in a generator with a single-loop armature. An illustration of how a sine wave is produced is shown through animation.

In this interactive object, learners review the CDR and work nine problems. Immediate feedback is given.

In this interactive object, learners match physiological, mechanical, or other parenteral nutrition complications with the appropriate nursing care.

Learners examine the circuitry in a DC variable speed drive that protects the rectifier diodes and motor windings from being damaged due to excessive current.

In this learning activity you'll explain how voltage and resistance in a series circuit affect current flow.

Learners review Kirchhoff's Current Law and work six practice problems. Feedback is given.

Learners observe current flow throughout the series portion and branches of a parallel circuit. This animated activity includes calculations and a short quiz.

Learners read how an inductor opposes a current change when it begins to energize and when it begins to de-energize. A short quiz completes the activity.

In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.

In this animated object, learners study the operation of a linear voltage differential transformer. A brief quiz completes the activity.

In this learning activity, you'll discuss shifting perceptions of parents at different life stages.

Students determine what happens to current flow in a series circuit when the resistance is changed. A brief quiz concludes the activity.

Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.

In this learning activity you'll explore Kirchhoff's Current Law and view examples of its application.

In this interactive learning object, students view the ammeter connections for measuring currents in a parallel circuit with three branches on an energy concepts lab board. A brief quiz completes the activity.

Learners study animated rheostat settings that show how current flow is inversely proportional to resistance. Ten review questions complete the learning object.

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

Learners examine how voltages and currents vary in a series RLC circuit as the applied frequency changes.