In this module the student will learn about another circuit quantity, capacitance, and discover the effects of this component on circuit current, voltage, and power. The module is divided into seven lessons: the capacitor, theory of capacitance, total capacitance, RC (resistive-capacitive circuit) time constant, capacitive reactance, phase and power relationships, and capacity design considerations. Each lesson consists of an overview, list of study resources, lesson narratives, programed instructional materials, and lesson summaries. (Author/BP)