This exam will test your ability to decode a resistors color code and calculate the resistance and tolerance of a resistor. The table given below shows the numerical value associated with each colour. In this exercise you will practice reading and converting resistor color codes to their numeric equivalent and viceversa. The 4 color bands on the left side are grouped together to represent the resistance value of a resistor and the 5 th color band on the right side indicates the tolerance of the resistor the 1 st color band indicates the 1 st significant value or 1 st digit of the resistors value the 2 nd color band indicates the 2 nd significant value or 2 nd digit of the resistor value. Steps in determining the value of the color coded resistor hold the resistor. To use this tool, simply click on a particular color and number and watch how the actual bands on the resistor illustration change. Chapter 1 resistor colour codespecific objectives students should be able to. The above resistance has a tolerance color of gold. The resistor color code calculator decodes and identifies a value and tolerance of 4 band wire wound resistors.
The color bands on the body of the resistor tell how much resistance it has. In our previous post we saw that there are many different types of resistor available that can be used in both electrical and electronic circuits. Determine, using a color code chart, its coded resistance, in units of ohms the symbol for which is. If there is no tolerance band, then find the side that has. To determine the stated value of a resistor by interpreting the color code indicated on the resistor. Find the value and tolerance of a 4 band, 5 band, or 6 band resistor with our resistor color code calculator or download our color code pdf for reference. An electronic color code is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others. It is defined by the international standard iec 60062 entitled marking codes for resistors. Sep 14, 2017 by sabrina quairoli this blog uses cookies, see this page for more details. This skill is needed by technicians, engineers, and some hobbyists. By using these colors you can calculate the value of the resistor with the help of ohms law. Resistor color coding uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating. Every color is different number and you can remember these numbers or you can just use the table on next step.
Because carbon resistors are physically small, they are colorcoded to identify their resistance value in ohms. Resistor color coding fiveband color code precision resistors often use a fiveband code to obtain more accurate r values. Probably the most common electrical color code is the one that indicates the nominal value of resistors. There are three types of color coding with different numbers of color bands including 4, 5, and 6 bands. The most common types have a fixed value of resistance so are often called fixed resistors. After power supply, the next major important thing to learn is how to measure resistor with multimeter and color coding. Table 1 lists the colors found on resistors and shows what each color band represents 12 110,000 n 110 brown t yellow 0000 fig. The use of color bands on the body of a resistor is the most common system for indicating the value of a resistor. Select the number of bands, then their colors to determine the value and tolerance of the resistors or view all resistors digikey has to offer. Colorcoding identifies the nominal value and tolerance of most resistors.
Arnido jr instructor, colegio san agstin bacolod 2. Many electrical components use some form of color coding scheme to indicate their value. There are basically three types of color band resistors. Resistor color code 1st nd digit 2 digit 3rd digit multiplier stripe tolerance 4th stripe black 0 0 0 x 1 brown 1 1 1 x 10 1% red 2 2 2 x 100 orange 3 3 3 x 1 000 yellow 4 4 4 x 10 000 green 5 5 5 x 100 000 blue 6 6 6 x 1 000 000 purple 7 7 7 grey 8 8 8 white 9 9 9 gold x 0. Experiment 1 resistor color code and use of the ohmmeter. The standards for color coding registers are defined in international standards iec 60062.
We have a basic article on breadboard power supply. Scribd is the worlds largest social reading and publishing site. A preferred resistor value chart for laminating back to back with the color code chart. Theory there are two ways to find the resistance value of a resistor. To create a simple and quick way of identifying a resistor value no matter what its size and condition, an international and universally accepted resistor color coding scheme was developed many years ago. Now read the next color, here it is red so write down a 2. Resistor colour code and resistor tolerances explained.
The bands are often very thin and perception of the colors can easilly be shifted by lighting and the background color, so its really easy to misread a color band. Pdf owner manuals and user guides are not affiliated with the products andor names mentioned in this site. You can import the pdf file into a software like inkscape and there you can do what you want, including a color check. Resistor color code is used to indicate the value of resistance. Our resistor color code calculator is a handy tool for reading carboncomposition resistors whether its a 4band, 5band or 6band type. So, colour bands are printed on them to represent the electrical resistance. This system is employed for resistors when the surface area is not sufficient to print the resistance value for the past time. The resistance of zeroohm resistors range from 10 to 50 megaohm. Look for the 3 colors which they are near on each other. This site consists of a compilation of public information available on the internet. Below mentioned are the number and the color of resistors. Resistor color code for 4 and 5 band resistors leon audio. The color code consists of various color bands, which indicate the resistance values of resistors in ohms as well as the tolerance rating. Resistors are usually very tiny and it is difficult to print resistance values on them.
Resistance resistor color code band 1 band 2 band 3. Color coding is a method used to indicate the resistive value, tolerance, and temperature coefficient of resistors with low wattage rating because of their small size. Determine, using the color code chart, the tolerance in percent of the resistor, and record this tolerance in. Sep 14, 2017 im a big fan of color coding in an office, but it can be easily used to organize the home as well. All leaded resistors with a power rating up to one watt are marked with colour bands. In this, the gold is of 5% and the silver is of 10%. How to read a resistor color code if we are to work with resistors we must learn how to determine their values from the color bands that are printed on them. Updated resistor color code pdf chart resistor color. How to read color codes from resistors the value of the resistor is marked on the body using colors. A helpful little utility that allows you to find the value of a standard resistor without memorizing the color codes. Resistor color code calculator and chart 4band, 5band. Oct 23, 2017 how to calculate value of resistor using color code on its body resistance with color code.
You will be building circuits similar to the ones you will be working with in homework and exam problems. Starting from the other end, identify the first band write down the number associated with that color. Because carbon resistors are physically small, they are color coded to identify their resistance value in ohms. The quiz and worksheet help you evaluate your knowledge of color codes on resistors. Resistor tolerance is a measure of the resistors variation from the specified resistive value and is a consequence of the manufacturing process and is expressed as a percentage of its nominal or preferred value. Suitable for printing on an inkjet in pdf file format page 2 has 4 charts to the page. The fifth band is the tolerance and represents the worst case variation one might expect from the nominal value. This small coder from ohmite shows the resistance color markings for standard carbon resisters. Having a unique purpose, the software is lightweight and does not consume lots of cpu resources. The first three stripes indicate the first 3 digits in the r value.
Generally on larger power resistors, the resistor colour code systems is not required as the resistance value, tolerance, and even the power wattage rating are printed onto the actual body of the resistor instead of using the resistor colour code system. The back shows a chart with a diagram showing the meaning of the four standard color bands. The chart below shows how to determine the resistance and tolerance for resistors. So with combining the intensity of red, green and blue we can mix almost any color that our heart desire. Therefore, bands of color are used to represent the resistance. This system was employed for resistors when the surface area was not sufficient to print the. This standard describes color coding for axially leaded resistors and numeric code for smd resistors.
And if you want to export the result to a file, then some of the mentioned software can also do that for you. The color code starts near the edge of one side of the resistor and consists of several. These colour bands are known as resistor colour code. The use of color bands on the body of a resistor is. How to read resistor color coding scheme eeweb community.
Resistor color codes color codes electronics textbook. Resistor color code may suit anyone involved in electronics whether he is a student or a professional. Resistor color code 4 band, 5 band and 6 band resistors. Learn more about resistors and resistor color codes. A resistor is perhaps the most common building block used in circuits. This tool is used to decode information for color banded axial lead resistors. The gimp can easily tell you the rgb or cmyk values of any color in a pdf. There are several bands to specify the value of resistance.
Enter the color of your resistor and resistor color code will manage to provide you the matching value. Therefore, bands of color are used to represent the resistance value. Electrical resistance and the resistor introduction ohms law is the most fundamental equation in electric circuit analysis. When you open the pdf, it will offer to treat each page as a layer. High voltage resistor dont use metallic colour instead use gold or silver to prevent metal particles presence in the exterior coating. A separate code, the 25pair color code, is used to identify wires in some telecommunications cables. Jul 11, 2012 chapter 1 resistor colour codefixed resistors wirewound resistors consistsof a length of nickel wire wound on a ceramic tube and covered with porcelain. There are two ways to find the resistance value of a resistor. Resistor color code calculator and chart 4band, 5band or 6. How to find the resistor value using the color codes. Those consist of the first, second and third digits, so it will be 494. Theres only a handful of red files in the drawer, so the file for my. Resistor color code manufacturers typically use a color band system known as the resistor color code in this pdf file, you will learn how to identify the nominal resistance and the.
The biggest reasons i love color coded files are because they make daytoday interacting with my files easier. Color code for resistors carboncomposition and carbon film resistors are too small to have the resistance value printed on their housings. Take the quiz beforehand to check what you already know, and. This system was employed for resistors when the surface area was not sufficient to print the resistance value for the past time. Jun 09, 2012 colour coding pdf files products and names mentioned are the property of their respective owners. Compute resistance according to colour code bands provided. Wheel charts for antique radios, electronics, and technology. Many types of resistors are used having different uses and construction. Learn about sample questions resistor color code more easier in our website electrostudy electrostudy study and learn about electricity, basic electronic, circuit, wiring diagram, example and. First find the tolerance band, it will typically be gold 5% and sometimes silver 10%. Resistor color code system resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal film resistors, and wirewound resistors cylindrical with enlarged ends of the axial lead type.
The resistance value will be calculated and shown along with the minimum and maximum values. Different codes are used for wire leads on devices such as transformers or in building wiring. Composition resistors are color coded to indicate resistance values or ratings. To determine the value of resistance, colour bands are always read from left to right from the end that has the bands nearer. Resistors can be found in almost every household appliance. The color helps us know the resistance of the resistor without measuring it. Most of the time, such values have to be memorized and if you do not get used to these items. If your answer is yes, then this tool is specifically designed for you. The third and fourth represents intensity of green and fifth and sixth represents the intensity of blue. It states that the amount of electric current flowing in a circuit is directly proportional to the voltage applied to the circuit, and inversely proportional to its resistance. Or there are much resistor calculators that you can use. The first two symbols in html color code represents the intensity of red color. I found that if everyone knows the system or their assigned colors, they will be able to see what they are looking for quickly and easily.
An automatic resistor calculator can be used to quickly find the resistor values. The table can also be used to specify the color of the bands when the values are known. Fiveband resistor color codes pdf file for 5band color codes example. Also includes and ohms law calculator and a resistor color code quiz currently in the process of being implemented. Though, you can decode resistor codes with the help of the color coding table, but there may be situations in which you have to calculate the resistance of many resistors. It is rectangular and has three wheels to spin for finding color and resistance value. How to calculate value of resistor using color code on its. Resistor color codes pdf download build electronic.
How to use a color coding system to organize your home or. Resistor color code chart handout pdf teachengineering. The attractive rainbow colors adorning most fixed resistors serve a purpose beyond catching your eye. The system of representing the resistor value is known as colour coding. How to use a color coding system to organize your home or office. The correspondence between the digits and the colors of the bands is named the resistor color code. Different types of resistors and its color code calculation in electronics resistors are the most commonly used components in electronic circuits and devices. Given 10 different sets of color bands, determine the resistor values and tolerances.
The main purpose of a resistor is to maintain specified values of voltage and current in an electronic circuit. Determine, using the color code chart, the tolerance in percent of the resistor, and record this tolerance in column 3. This coding is standardized by the electronic industries association. Resistor color code chart resistors are devices that limit current flow and provide a voltage drop in electrical circuits. Hello dear sir i hope everything is going well i have problem with resistance colors what can i do. Resistor color code system how to read the resistor code. Do you remember what the colors on your resistor means. What is the value of the electrical resistance of the resistor with color rings as follows. Deb hall electronics engineering technology valencia community college. Resistor color coding system applies to carbon film resistors, metal oxide film resistors, fusible resistors, precision metal film resistors, and wirewound resistors. The 1 st color band on the resistor indicates the 1 st significant value or 1 st digit of the resistors resistance and the 2 nd color band indicates 2 nd significant value or 2 nd digit of the resistors resistance. Sep 28, 2015 resistor color code is used to indicate the value of resistance.
State the 4 factors that affect the resistance of a resistor. Download the latest version of resistor color code free in. Q4 why high voltage resistor dont use metallic color. Components that are sued by students generally has for band color schemes, the four band identification systems needs to be studied as the color of all the four bands are painted on the resistor in order to provide the resistance in. Typical resistor tolerances for film resistors range from 1% to 10% while carbon resistors have tolerances up to 20%. The 3 rd color band is the decimal multiplier and the 4 th color band indicates the resistors tolerance. Understanding the resistor color code nieees library.
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