• Home
  • Download PDF
  • Order CD-ROM
  • Order in Print

Home > Ordnance Documents and other related manuals > > Types of Circuits
Figure 11. Common Electrical Symbols cont.
Figure 13. Parallel Circuit

Wheeled Vehicle Electrical Systems
Page Navigation
  21    22    23    24    25  26  27    28    29    30    31  

Lesson 1/Learning Event 2
TYPES OF CIRCUITS
Electrical circuits can be laid out in series, parallel, or series-parallel. To troubleshoot an electrical
circuit, you must be able to identify the way it is laid out and understand how current flows in the
circuit.
FIGURE 12. SERIES CIRCUIT.
First, let's take a look at the SERIES CIRCUIT. A good example of this circuit is a string of series-
connected Christmas tree lights. Can you recall a time when all the bulbs on a light set quit
working because one bulb burned out? This is what happens when a series circuit is used.
The reason for all the lights going out can be easily explained by the schematic diagram of the light
set. Notice there is only one wire connected between each bulb. By following this electrical path,
the current must flow from the power source to the first bulb, through that bulb filament, to the
next bulb, through its filament, and so forth, in order to get back to the power source.
25






Western Governors University

< Previous Page
Index ^
Next Page >

Privacy Statement
Press Release
Contact

© Copyright Integrated Publishing, Inc.. All Rights Reserved. Design by Strategico.