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Basic Direct Current (DC) Theory

COURSE NO: E03-001
COURSE PROVIDER: Gilbert Gedeon, P.E.
Basic Direct Current (DC) Theory
Course Highlights

This online engineering PDH course introduces the basic concepts of direct current (DC). It starts by describing the various types of DC sources. It explains the relevant DC circuit terminology. It demonstrates a series of basic DC circuit calculations by providing pertinent examples. It introduces conventional and electron flow and voltage polarity as well as defines Kirchhoff's Laws. Finally it discusses DC circuit analysis and faults.


This 3 PDH  online course is applicable to electrical and computer engineers, design and construction personnel, technical staff and facility operators who are interested in gaining a better understanding of the theory of direct current.

Learning Objectives

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

  • Identifying DC sources
  • Familiarizing with DC circuit terminology
  • Performing DC circuit calculations
  • Understanding voltage polarity and current direction
  • Knowing Kirchhoff's laws
  • Analyzing DC circuits and identifying circuit faults
Course Document

In this professional engineering CEU course, you need to review Module 2, "Basic DC Theory" of the Department of Energy Publication DOE-HDBK-1011/2-92, "Electrical Science". 

To view, print and study the course document, please click on the following link(s):
Basic Direct Current (DC) Theory (4.7 MB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of fifteen (15) questions to earn 3 PDH credits. The quiz will be based on Module 2 of this DOE publication.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: