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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 395 · 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.

NameDateTime takenScore ___ / 40
  1. 1.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-black (b) white-blue-brown (c) white-blue-red (d) blue-white-brown
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-orange (b) yellow-white-orange (c) white-yellow-yellow (d) white-yellow-red
  3. 3.🌈 In the resistor colour code, which number does orange stand for?
  4. 4.🌈 A resistor has the colour bands yellow, black, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) yellow-violet-orange (b) yellow-violet-yellow (c) yellow-violet-red (d) violet-yellow-orange
  7. 7.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  9. 9.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does violet stand for?
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the widest gap (d) the gold band
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) blue-white-black (b) blue-white-brown (c) violet-white-black (d) white-blue-black
  14. 14.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-red (b) brown-white-orange (c) white-black-orange (d) white-black-yellow
  16. 16.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, orange, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 340 Ω resistor? (a) orange-yellow-black (b) orange-yellow-brown (c) orange-yellow-red (d) yellow-orange-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-brown (b) violet-orange-brown (c) orange-violet-black (d) orange-violet-red
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) green-yellow-red (b) yellow-green-brown (c) yellow-green-orange (d) yellow-green-red
  25. 25.🌈 In the resistor colour code, which number does black stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) red-black-red (b) orange-red-brown (c) red-black-black (d) red-black-brown
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4700 Ω resistor? (a) violet-yellow-red (b) yellow-violet-orange (c) yellow-violet-red (d) yellow-violet-brown
  28. 28.🌈 In the resistor colour code, which number does green stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) white-brown-red (d) white-brown-brown
  30. 30.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) yellow-white-black (b) orange-white-black (c) white-orange-black (d) orange-white-brown
  32. 32.🌈 In the resistor colour code, which number does brown stand for?
  33. 33.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, black, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) blue-green-black (b) green-blue-black (c) green-green-brown (d) green-green-black
  38. 38.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 In the resistor colour code, which number does white stand for?
  40. 40.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. white-blue-brown
  2. white-yellow-orange
  3. 3
  4. 400
  5. 120
  6. yellow-violet-orange
  7. 2.9
  8. 5 %
  9. 54
  10. 7
  11. 6
  12. the one nearest an end
  13. blue-white-black
  14. 720
  15. white-black-orange
  16. 150
  17. 41
  18. 5300
  19. 96
  20. orange-yellow-brown
  21. orange-violet-brown
  22. 8
  23. 84
  24. yellow-green-red
  25. 0
  26. red-black-brown
  27. yellow-violet-red
  28. 5
  29. white-brown-red
  30. 89
  31. orange-white-black
  32. 1
  33. 2.5
  34. 450
  35. 20
  36. 21
  37. green-green-black
  38. 7.6
  39. 9
  40. 29

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