Learn the Resistor Color Code
Practice reading bands and check your answers while learning electronics.
Digit 1
Digit 2
Multiplier
Tolerance
π‘ Read bands from the end with the tolerance band (often gold or silver) on the right. 4-band resistors use two significant digits; 5- and 6-band use three for tighter precision.
Students tips
The classic mnemonic "Big Boys Race Our Young Girls But Violet Generally Wins" maps to black-brown-red-orange-yellow-green-blue-violet-grey-white = 0-9.
Set the bands here, read off the value, then verify β repetition builds the memory fast.
The tolerance range shown tells you the real min/max resistance, which matters in voltage-divider math.
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Decode the most common resistor type: two digits,
Decode 5-Band Precision Resistors
Read three-significant-digit resistors used in pre
Decode 6-Band Resistors
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Pick Resistors for Arduino & LEDs
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