PDHengineer for engineers continuing education PDHengineer Live Help

HOME  |  FAQ  |  CONTACT US 

  Search PDH continuing education coursesHow PDHengineer worksTeach a PDH continuing education courseMy Account

   

 

Direct Current Circuits Fundamentals

 

Course No. E-6003

Back to Electrical Courses

Credit:  6 PDH  
Course Fee:  $164.95  

A. Bhatia

Overview

Most students of electricity begin their study with what is known as direct current (DC). This is different than static electricity, which typically collects on the surface of a non-conductor such as a piece of plastic. It is also different than alternating current (AC) electricity, which flows back-and-forth in a conductor. In DC circuits, the polarity of the voltage source and current does not change over time. The direction of the flow of current in a circuit is always taken to be the direction in which a positive charge would move. By convention, we show DC current flow as originating at the positive terminal of the source, traveling through the circuit and returning to the negative terminal. The main source of DC is from batteries, photocells, fuel cells, rectifiers and DC generators.

This 6-hr course provides the basic fundamental concepts, laws and terminology as they relate to DC circuits. This course will help readers gain an understanding of resistance, voltage, and current in series and parallel direct current (DC) circuits.

The course material is based entirely on Naval Education and Training Materials (NAVEDTRA 14173), Electricity and Electronic Training Series; Module-1 “Introduction to matter, energy and direct current” and covers Chapter 3, “Direct Current”. The text is arranged to let you progress at your own pace, and concepts and terms are introduced as you need them, with many detailed examples and illustrations.  This course will be extremely helpful to electrical engineers looking for a refresher course in direct current, as well as engineers in other disciplines who would like to expand their knowledge in fundamental electrical engineering concepts.

The student must take a multiple-choice quiz consisting of thirty (30) questions at the end of this course to obtain PDH credits.

 

Specific Knowledge or Skill Attained

This course teaches the following specific knowledge and skills:

  • State the equation for Ohm’s law and describe the effects on current caused by changes in a circuit

  • Identify the term "power", and state three formulas for computing power

  • Compute circuit and component power in series, parallel, and combination circuits

  • Describe how voltage polarities are assigned to the voltage drops across resistors when Kirchhoff’s voltage law is used

  • Define open and short circuits and describe their effects on a circuit

  • State the meaning of the term "source resistance" and describe its effect on a circuit

  • Describe in terms of circuit values the circuit condition needed for maximum power transfer

  • Solve for unknown quantities of resistance, current, and voltage in a parallel circuit

  • State the significance of the polarity assigned to a current when using Kirchhoff’s current law

  • State the meaning of the term "equivalent resistance"

  • Compute resistance, current, voltage, and power in voltage dividers

  • Recognize the safety precautions associated with the hazard of electrical shock

 

Course

Click on the following PDF attachment and review the document prior to taking a quiz for credit. 

 

Direct Current (650 KB)

 

Having Trouble Downloading the PDF File?

Right click on the link.  Select "Save Target As..."   Then save on your desktop.  To view the file, double click the icon on your desktop and return to this page to take the quiz.

You may need Acrobat Reader to view this document.  Click on the link below to download a free copy of Acrobat Reader.

  

 

To obtain PDH credits for this course, you will need to take a quiz for credit.  Click on the link below. 

(To take the quiz, your web browser must be set to accept cookies.  See how to check your cookie settings.)

 

 

 

   

Related Books

 

Handbook of Microwave Components and Engineering

 

 

 

 

The Microwave Engineering Handbook

 

 

 

An Introduction to Radio Frequency Engineering

 

 

RF Circuit Design

 

 

 

 

 

 

 

 

 

 

 
 

 

About Us | Affiliate Program | Charity | Engineering Links | Link With Us | Seminars Near You | Privacy Policy | Terms of Use

Refer a Friend or Coworker and earn a $25 Gift Certificate or $150 cash

© 2002-2008, Decatur Professional Development, LLC

 

PDHengineer.com | 5870 Highway 6 North, Suite 110, Houston, TX 77084 | Toll Free: 877-500-7145

 

 A Better Business Bureau Accredited Business

  CLICK TO VERIFY