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Five Band Resistor Color Code-What Does The Last Band Of White Color
Represent?

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In electronic repair, most
of the time i came across five band resistor color code. The purpose
of using the five colour band resistor in a circuit is that it provide a
more accurate
value compare to the four color band. For example in order to get the value
of 22.6kohm,
with four colors band resistor you will not be able to find it. The most you
can get is 22k
(red,red,orange and gold). If with the five color band you will be able to
calculate it
(red,red,blue,red,brown)the last color which is brown represent 1%
tolerance. You may go to
google search engine and type resistor color code, resistor color coding,
resistor color code
calculator, or resistor color code chart to know more
about how to calculate a five band resistor
values.
If you open up an analog multimeter you will understand what i mean. Most of
the resistor circuit inside
the multimeter are using five color band. Why? Because the reading that you
get whenever you measure current,
voltage or ohm, the panel will show the nearest value. For instance, if you
measure a 9v battery
the needle will point to may be 8.9v,9v,or 9.1 volt. If that particular
multimeter was designed
using four color band resistor the result that it gets may be 8.5v,9.5v or
even 10 volt. In other
words the use of five color band resistor is to make a circuit more precise
and output the desire
result as what the engineers want it to be.
There's a interesting five color band resistor which is unique.
In fact i have already seen quite a number of them. I will reveal the
calculation about this
unique five color band resistor. The colors are orange, orange, red, gold,
white.
Actually it is a four color band resistor. Just ignore the white color and
proceed to calculate
using the four color band formula. However, from forum someone said that it iwas for
the military purposes.
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