Last time we have a little review of basic Physics. The reason why I included those topics here in Electrical Engineering as a beginning topic because those topics are mostly given in the board exam during our time. Please bear with me for three times posting for I have to do a little SEO for this blog. The reason why I’m doing this is to drive more traffic to this site.
Resistor Color Code
We all know that we can find the resistance value of any resistor by using an ohmmeter. But what if we don’t have an ohmmeter to use? Most of the case we can find the resistance value easier by interpreting its marking. Some resistors like wire-wound resistor have its printed value in ohms in their body. If they don’t have the mark, you would require to use an ohmmeter. An example of a resistor which usually have all of the data printed directly on the resistor body with the information such as tolerance, temperature characteristics, and exact resistance value is the precision wire wound resistor. Other resistor like the carbon resistors usually do not have the data of characteristics directly marked on them, instead they have a so called color code by which they can be identified. You will wonder why it is being done this way for carbon resistors. The reason of using a color code for a carbon resistor is that they are small which is difficult to read the printed values especially when they are mounted.
Before we forgot something, there are two types of carbon resistors. The radial and an axial. They are only differ in the the way the leads are connected to the body of the resistor. Both employ the same color code but they are printed in the different manner.