Simple Resistor Color Code Calculator
Posted by Richard 3 June, 2010
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Having hard times with the resistors color code? Then, while you learn it, you might find useful this simple calculator, which will either find the colors representing a given value of resistance or the resistance value in ohms for a given color set.
This is for 4-color rings resistors, either rated at 5% or 10% tolerance. It will not calculate the precision 5-color bands resistors having a tolerance of 1%.
The color ring for tolerance, which is the fourth one, either gold or silver colored, is ignored here since it is not critical on most applications. It basically tells that the represented value in colors, may vary for a range of a 10% (from -5% to +5%) from the actual value if this ring is gold colored, and 20% (-10% to +10%) if it is silver colored. Most modern regular resistors are marked as 5% tolerance (gold), which is fairly acceptable.
(NOTE: Will not work with Internet Explorer version 6 or earlier)
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Categories : Automotive, Electronics
