Inductive and Capacitive Reactance

A. Bhatia

About A. Bhatia

Mr. A. Bhatia is an online PDH course provider of continuing education courses for professional engineers.


Mr. Bhatia is a graduate engineer with 20 plus years of extensive experience in electro-mechanical engineering, procurement and construction industry. He has been involved in setting up grass root projects from zero to commissioning, interfacing with architects, machinery suppliers, vendors for projects nationally and globally.


He received 4-years bachelors' degree in Mechanical Engineering from an accredited Delhi university in India.


He specializes in conceptual design, optimization studies, energy efficient and environmentally responsible system designs for Infrastructure facilities, Green Buildings, Oil & Gas facilities, Power Plants and Metal & Mining. His core strengths are in the following areas:

  • HVAC, loss prevention and plumbing
  • Energy & Environment Conservation
  • Utility Systems (compressed air, water treatment, cooling, power generation, boiler systems, plumbing, etc)
  •  All type of mechanical package equipments (chillers, fans, pumps, conveyors, EOT cranes, DG sets, welding, machining, materials, heat transfer etc)
  •  Electrical and Control Systems (motors, power factor, short circuiting, transformers, AC/DC circuits)

In his current role, Mr. Bhatia provides consulting services to a number of facilities such as airports, commercial buildings, chemical, biomedical and pharmaceutical facilities, power generation, oil & gas, manufacturing, consumer products. Prior to this, he has worked with United Nations led program on energy conservation and clean development mechanism (CDM) jointly with renowned international experts specialized in their sectors. He has vast international experience on various global projects all over the world in US, UK, Australia, Canada and Middle East.


He has presented technical papers and has drafted nearly 70-energy audit and management reports. He has also published more than 100 technical courses for professional development hours.


COURSE NO: E04-005
PRICE: $96


Course Highlights

This continuing education online PDH course is NY approved. This course is also accepted in the States of AK, AL, AR, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, WI, WV and WY.

Reactance is measure of the opposition to the flow of alternating current caused by the inductance and capacitance in a circuit rather than by resistance. Steady electric currents flowing along conductors in one direction undergo opposition called electrical resistance, but no reactance. Reactance is present in addition to resistance when conductors carry alternating current. Reactance also occurs for short intervals when direct current is changing as it approaches or departs from steady flow (e.g., when switches are closed or opened).


Reactance is of two types: inductive and capacitive. Inductive reactance is associated with the varying magnetic field that surrounds a wire or a coil carrying a current. Capacitive reactance is associated with the changing electric field between two conducting surfaces (plates) separated from each other by an insulating medium.


This online PDH course is applicable to electrical engineers, design and construction personnel, technical staff and facility personnel who are interested in gaining a better understanding of inductive and capacitive reactance.


In this course, you need to review Chapter 4 of Module 2 titled Inductive and Capacitive Reactance of the Naval Education and Training Materials (NAVEDTRA 14174), Electricity and Electronic Training Series, provided below. Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty (20) questions to earn 4 PDH credits. The quiz will be based on Chapter 4 of Module 2 of this NAVEDTRA publication.


Learning Objectives

This continuing education course is intended to provide you with the following specific knowledge and skills:

  • State the phase relationships between current and voltage in an inductor and in a capacitor
  • State the terms for the opposition an inductor and a capacitor offer to AC
  • Write the formulas for inductive and capacitive reactance
  • State the effects of a change in frequency on inductive and capacitive reactance
  • State the effects of a change in inductance on XL and a change in capacitance on XC
  • Compute total reactance (X) in a series circuit and indicate whether the total reactance is capacitive or inductive
  • Write the formula for total reactance and impedance
  • Write the Ohm's law formulas used to determine voltage and current in an ac circuit
  • Define true power, reactive power, and apparent power
  • State the definition of and write the formula for power factor

Course Document

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Inductive and Capacitive Reactive (496 KB)

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Course Quiz

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