Understanding Colour code of resistor:
Resistor is a passive component in the circuit which opposes the flow of current.
There can be resistors of variable bands(4,5,6 etc) which represents the resistance of the given resistor.The last colour on the resistor represents the tolerance of resistor while the second last colour represent the multiplier.The colour code on the resistor can be analysed as:
Green 5 5 0.5%
Gold -1 5%
Resistor is a passive component in the circuit which opposes the flow of current.
There can be resistors of variable bands(4,5,6 etc) which represents the resistance of the given resistor.The last colour on the resistor represents the tolerance of resistor while the second last colour represent the multiplier.The colour code on the resistor can be analysed as:
Colour Digit Multiplier Tolerance
(10^x)
Black 0 x=0
Black 0 x=0
Brown 1 1
Red 2 2 2%
Orange 3 3
Yellow 4 4
Green 5 5 0.5%
Blue 6 6 0.25%
Violet 7 7 0.1%
Grey 8 8 0.05%
White 9 9
Gold -1 5%
Silver 2 10%
No colour 20%
fig:Colour code of Resistor
If you consider the colour in the resistor in correct order of A,B,C,D,E,F...............etc.Then for four band resistor : R= AB * 10^C (+/-) D%.
similarly,for five band resistor,resistance is given by : R= ABC * 10^D (+/-) E% and so on.
If you consider the colour in the resistor in correct order of A,B,C,D,E,F...............etc.Then for four band resistor : R= AB * 10^C (+/-) D%.
similarly,for five band resistor,resistance is given by : R= ABC * 10^D (+/-) E% and so on.
For example:Determine the colour code of following resistor 75 KΩ (+/-) 10%.
Here 7 stands for the colour Violet.
5 for Green and the multiplier 1000(1 KΩ) is Orange colour from above table.Similarly,the tolerance of 10% is of Silver.Hence the Colour code of the resistor becomes "VGOS".
In the same way one can generate the unknown resistance of the given resistor using the table.
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