Students work six practice problems to determine the total capacitance of a series circuit. Immediate feedback is given.

Using a memory shortcut for calculations, the learner determines line and phase values of current in a three-phase AC configuration. Practice problems complete the activity.

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

Learners read a description of torque and study the factors that cause its magnitude to change. A brief quiz completes the activity.

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 animated lesson shows how a photoelectric sensor, connected to a ladder circuit, causes the cylinder of a hydraulic circuit to extend and retract.