A sample exam for DC/AC I, unit # 12 is presented to the students. This unit covers transformers.

Students answer 10 questions in a sample exam. This exercise covers number systems, number conversion, logic gates, and combinational design. Feedback is provided.

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

In this interactive object, learners answer nine questions about inductors.

Students answer five questions concerning magnetism.

In this interactive object, learners work 11 problems covering atomic structure, conductors, and insulators.

Learners answer eight questions about capacitors. Help pages are available.

Learners answer six questions about transformers.

In this interactive object, learners work 10 problems covering resistors, voltage, and current.

Learners answer 14 questions about series-parallel DC circuits.

In this learning activity you'll read about efforts to prevent the government from interfering with citizens' rights to practice their religious beliefs.

In this animated object, learners examine the operation and programming requirements of a PLC Examine-Off instruction. A brief quiz completes the activity.

Learners examine an animated view of the operation and programming requirements of a PLC Examine-On instruction. A brief quiz completes the activity.

In this interactive object, students view the various positions used during medical examinations. They then match the names of the positions with the correct images and with their descriptions.

In this interactive object, learners answer nine questions about series and parallel circuits. Immediate feedback is provided.

In this animated object, students examine the role that the solubility of water plays in various biological functions.

In this interactive object, students answer 10 questions covering Ohm's Law and Power Law.

Learners read a description of inductors and view examples of inductors in series and in parallel.

Learners read a passage and answer two questions based on the information found it that passage. Immediate feedback is provided.

Learners solve two sample problems for a mechanical reasoning assessment.