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Courses/Electrical/Power Gen and Distribution

AC Circuit Theory: From Inductive and Capacitive Reactance to Power Factor Correction

Conquer alternating current analysis by mastering reactive loads, calculating complex impedance, and applying practical techniques to optimize electrical system efficiency.

Created by Tiffany Miller
BeginnerUpdated Aug 17, 2026
AC Circuit Theory: From Inductive and Capacitive Reactance to Power Factor Correction

What You'll Learn

check_circleCalculate inductive and capacitive reactance in single-phase AC circuits.
check_circleAnalyze phase relationships between voltage and current using phasor diagrams for RLC circuits.
check_circleCompute real, reactive, and apparent power to determine the power factor of an AC system.
check_circleDetermine the necessary capacitance required to correct a lagging power factor to a specified target.
check_circleEvaluate the impact of power factor correction on overall electrical system efficiency.

About This Course

Master the complexities of alternating current systems in this deep dive into AC Circuit Theory. This course provides a thorough exploration of how electrical components behave under AC conditions, moving beyond basic resistance to unpack the critical concepts of inductive and capacitive reactance.

Through detailed explanations of phase relationships, impedance, and the power triangle, the material breaks down the essential differences between real, reactive, and apparent power. The journey culminates in a practical examination of power factor correction, demystifying the techniques used to optimize power distribution, enhance system efficiency, and mitigate energy waste in modern electrical networks.

This comprehensive overview provides the critical theoretical foundation required to accurately analyze, troubleshoot, and improve complex AC circuits in commercial and industrial applications.

Your Instructor

Tiffany Miller
Tiffany Miller

Engineering Expert

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Tiffany Miller is an accomplished engineering leader with more than 20 years of experience in manufacturing, mechanical engineering, process optimization, and operational excellence. She began her career through a formal engineering apprenticeship at the age of 16 while earning an Associate of Applied Science in Engineering Design, graduating with three Dean’s List honors. She went on to earn her Bachelor of Applied Science in Engineering, graduating Summa Cum Laude, before serving for over a decade as Head of the Manufacturing Engineer team, leading complex manufacturing operations, process improvements, and cross-functional engineering initiatives. Committed to continuous growth, Tiffany later earned her Master of Business Administration (MBA), graduating with a 3.7 GPA while specializing in Lean Six Sigma and earning her Lean Six Sigma Green Belt certification. Today, she serves as an Engineering Manager, providing strategic leadership for both Mechanical Engineering and Manufacturing Engineering teams. Her expertise includes manufacturing engineering, product development, Lean manufacturing, quality systems, continuous improvement, project management, and building high-performing engineering teams. Tiffany is passionate about developing practical, innovative solutions that improve efficiency, enhance product quality, and deliver measurable results for both organizations and their customers.

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We are a registered provider with 327+ associations and regulatory bodies worldwide. We operate across 29 global markets including Canada, the US, Australia, and the UK. Every course page clearly displays its specific accreditations. Upon completion, you receive a professional certificate that can be validated online. Our certificates include all necessary accreditation details, credit hours, and completion dates, and are formatted specifically to meet the submission requirements of most global regulatory bodies.

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