Resistor colour codes

resistor

4 Band resistor colour coding

On a resistor which has four bands of color, the first and second bands represent a two digit number. This can be found by looking at which number value the colours represent. In the Figure below, the first band is brown and the second is black. This gives use 10 as our two digit number. Next, you look at the third colour, which represents the multiplier. You take this value and multiply it by the two digit number. In this case, it would be 10 x 100Ω. This would give us a resistor value of 1kΩ.

resistor-colour-coding

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