In this interactive object, learners examine the PN sections of a diode and the diode's forward- and reverse-biased operations. A brief quiz completes the activity.

Learners view an animated explanation of why an adjustment of the output voltage by an AC drive is required to maintain a constant torque as the frequency is varied.

In this animated and interactive object, learners view American National Standard and International Standard sheet sizes. A quiz completes the activity.

The learner will assess his or her time management strategies and study habits.