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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 473 · 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 54000 Ω resistor? (a) yellow-green-orange (b) green-yellow-yellow (c) green-yellow-red (d) green-yellow-orange
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-red (b) white-yellow-brown (c) yellow-white-red (d) white-yellow-orange
  3. 3.🌈 In the resistor colour code, which number does blue stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  5. 5.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands orange, yellow, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 In the resistor colour code, which number does grey stand for?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  10. 10.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) orange-blue-black (b) red-blue-black (c) red-blue-brown (d) blue-red-black
  12. 12.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45 Ω resistor? (a) yellow-green-black (b) green-yellow-black (c) yellow-green-brown (d) green-green-black
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10 Ω resistor? (a) brown-black-brown (b) red-black-black (c) red-brown-black (d) brown-black-black
  15. 15.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 In the resistor colour code, which number does brown stand for?
  19. 19.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does white stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) green-violet-black (b) violet-yellow-black (c) yellow-violet-brown (d) yellow-violet-black
  25. 25.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-brown (b) blue-green-black (c) green-blue-black (d) green-green-black
  27. 27.🌈 A resistor has the colour bands violet, grey, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) blue-yellow-black (b) yellow-blue-black (c) violet-yellow-black (d) blue-yellow-brown
  29. 29.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, green, brown. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) red-grey-orange (b) grey-red-yellow (c) grey-red-red (d) grey-red-orange
  35. 35.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-red (b) red-orange-orange (c) orange-red-orange (d) orange-red-yellow
  38. 38.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, white, red. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does green stand for?

Answer key

  1. green-yellow-orange
  2. white-yellow-red
  3. 6
  4. the one nearest an end
  5. 350
  6. 34000
  7. 7
  8. 8
  9. 5 %
  10. 73
  11. red-blue-black
  12. 74000
  13. yellow-green-black
  14. brown-black-black
  15. 59
  16. 950
  17. 3
  18. 1
  19. 770
  20. 35
  21. 8200
  22. 31000
  23. 9
  24. yellow-violet-black
  25. 330
  26. green-green-black
  27. 78
  28. blue-yellow-black
  29. 1.3
  30. 550
  31. 300
  32. 13
  33. 53
  34. grey-red-orange
  35. 660
  36. 80
  37. orange-red-orange
  38. 40000
  39. 6900
  40. 5

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