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GCSE     Resistors     BS1852     >Colour Codes<     E24     LDR     Parallel     PIVR Calculations     Potentiometer     Puzzles     Series     Thermistor     Timing     Types     Voltage Divider    

Resistors Colour Codes


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  GCSE    Resistors  0 of 27    Question 1371    BS1852 Resistors 
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         0                   1                   2                   3                   4                   5                   6                   7                   8                   9         
Black Brown Red Orange Yellow Green Blue Violet Gray White

Three Stripe Resistors

Three Stripe Resistors

  • The resistor value is coded as coloured stripes.
  • The first stripe represents a number. (Yellow = 4)
  • The second stripe represents a number. (Violet = 7)
  • The last stripe represents the number of zeros. (Orange = 000)
  • The optional tolerance stripe represents the accuracy. (Red = 2%)
  • 47 000 Ohms or 47 kΩ or 47K.

Four Stripe Resistors - Not Common

Resistor Four Stripe these are not common

  • The resistor value is coded as coloured stripes.
  • The first stripe represents a number. (Yellow = 4)
  • The second stripe represents a number. (Violet = 7)
  • The third stripe represents a number. (Black = 0)
  • The last stripe represents the number of zeros. (Red = 00)
  • The optional tolerance stripe represents the accuracy. (Red = 2%)
  • 47 000 Ohms or 47 kΩ or 47K.

Tolerances

  Colour Tolerance Letter Code
Brown   1% F
Red   2% G
Gold   5% J
Silver   10% K
Unmarked   20% M

Resistor Comedy

xkcd cartoon - 24 Ohm Snake    xkcd.com/1604/

xkcd cartoon - Resistor Color Codes     xkcd.com/227/

 

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