The ELECTRICAL THEORY DC INTERACTIVE STUDENT DVD contains a complete set of videos that have been enhanced with interactive graphics, animations, and questions that you can easily use as a homework solution, study guide, or supplemental online classroom instruction. The DVD set correlates directly to Delmar's Standard Textbook of Electricity, but also complements any of Delmar's existing electrical theory products. These interactive DVDs allow you to better connect with the subject matter while fulfilling instructor requirements for electronic learning material.