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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 508 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

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  1. 1.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  4. 4.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) the widest gap (d) any band
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 190 Ω resistor? (a) white-brown-brown (b) brown-white-red (c) brown-white-black (d) brown-white-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-orange (b) brown-white-orange (c) white-brown-yellow (d) white-brown-red
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3900 Ω resistor? (a) orange-white-red (b) orange-white-brown (c) orange-white-orange (d) white-orange-red
  11. 11.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 270 Ω resistor? (a) red-violet-brown (b) red-violet-black (c) violet-red-brown (d) red-violet-red
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 A resistor has the colour bands red, orange, brown. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) brown-green-orange (b) green-brown-yellow (c) green-brown-red (d) green-brown-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 830 Ω resistor? (a) grey-orange-black (b) orange-grey-brown (c) grey-orange-red (d) grey-orange-brown
  19. 19.🌈 In the resistor colour code, which number does blue stand for?
  20. 20.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, red, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) orange-white-red (c) white-orange-brown (d) white-orange-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-brown (b) brown-black-red (c) brown-black-orange (d) red-brown-red
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-brown (c) brown-yellow-black (d) brown-yellow-red
  29. 29.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-orange (c) grey-black-red (d) grey-black-brown
  31. 31.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) white-green-black (b) green-white-brown (c) blue-white-black (d) green-white-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-black-black (b) white-black-black (c) brown-white-black (d) white-black-brown
  34. 34.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, brown, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 5.9
  2. 0
  3. 5 %
  4. 960
  5. the one nearest an end
  6. 3
  7. 6100
  8. brown-white-brown
  9. white-brown-orange
  10. orange-white-red
  11. 3.6
  12. red-violet-brown
  13. 1
  14. 8
  15. 230
  16. 2
  17. green-brown-orange
  18. grey-orange-brown
  19. 6
  20. 440
  21. 89000
  22. 8600
  23. 520
  24. 5600
  25. 43
  26. white-orange-red
  27. brown-black-red
  28. brown-yellow-brown
  29. 4800
  30. grey-black-red
  31. 42000
  32. green-white-black
  33. white-black-black
  34. 75000
  35. 48
  36. 360
  37. 57
  38. 72
  39. 24
  40. 51

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