“k” is used for kilo and means 1000 times and “M” is used for mega and means 1,000,000 times (million) Another example to understand resistor calculation When we calculate the resistance of a resistor we see large number of zeros, therefore prefixes are used to have a handy short name. Why to use kilo Ohm & Mega Ohm in Resistance Calculator Now you can easily remember the resistor colour code by remembering below given sentence.īig Brown Rabbits Often Yield Great Big Vocal Groans When Gingerly Slapped. Tolerance band is silver which is 10% Therefore the equation is:Ģ 0 x 10,000 = 200,000 Ohms ± 10% Resistor Color Code Chart Resistor Calculator Exampleįirst color is red which is 2, Second color is black which is 0, Third color is yellow which is 4 so multiplier come 10,000. Write it next to the other 2 numbers with a multiplication sign before it. if it is 3 you will multiply with 1000 (3 zeros). This number will give the number of zeros (0’s) you will multiply with the other 2 numbers by i.e. Match the 3rd color band with the chart under multiplier. Now look at the 2nd color band and match that color to the same resistor colour code chart. Now look at the chart given below on this page and match the “1st & 2nd resistor color code band” color to the “Digit it represents”. This may be difficult on small or oddly colored resistors. Look at the 1st color band and determine its color. Then read the resistor color code bands left to right. To determine or calculate the resistance and tolerance value of a given resistor color look for the gold or silver tolerance band and hold the resistor with this band to the right. Resistors are color coded for easy reading.
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