what is meant by colour coding of resistors
Answers
Explanation:
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. A separate code, the 25-pair color code, is used to identify wires in some telecommunications cables.
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Explanation:
Resistors are usually very tiny and it is difficult to print resistance values on them. So color bands are printed on them that represent the electrical resistance they carry. These color bands are known as resistor color code.
To read them, hold the resistor such that the tolerance band is on your right. The tolerance band is usually gold or silver in color and is placed a little further away from the other bands.
Starting from your left note all the colors of the bands and write them down in sequence. Next, use the table given below to see which digits they represent. The band just next to the tolerance band is the multiplier band. So if the color of this band is Red (representing 2), the value given is 10^2.
Calculating Resistor Values. For example, a resistor has the following coloured markings; Yellow Violet Red = 4 7 2 = 4 7 x 102 = 4700Ω or 4k7 Ohm. The fourth and fifth bands are used to determine the percentage tolerance of the resistor
