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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 88 · 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.🌈 In the resistor colour code, which number does blue stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 A resistor has the colour bands yellow, red, brown. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) blue-violet-brown (b) blue-violet-black (c) blue-violet-red (d) violet-blue-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-red (b) yellow-red-brown (c) red-yellow-red (d) yellow-red-orange
  8. 8.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 A resistor has the colour bands blue, grey, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-blue-black (b) violet-violet-black (c) blue-violet-brown (d) blue-violet-black
  13. 13.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-orange (b) brown-red-yellow (c) brown-red-red (d) red-brown-orange
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-brown (b) violet-yellow-red (c) violet-yellow-orange (d) yellow-violet-red
  17. 17.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) brown-grey-black (b) grey-white-black (c) white-grey-black (d) white-grey-brown
  20. 20.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-red (b) white-grey-orange (c) grey-black-orange (d) grey-black-yellow
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8200 Ω resistor? (a) grey-red-red (b) grey-red-orange (c) grey-red-brown (d) red-grey-red
  23. 23.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) red-orange-orange (c) orange-red-red (d) orange-red-orange
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 In the resistor colour code, which number does yellow stand for?
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-brown (b) brown-grey-black (c) grey-brown-brown (d) brown-grey-red
  34. 34.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-orange (b) orange-black-brown (c) yellow-orange-red (d) orange-black-red
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) blue-black-orange (b) violet-blue-red (c) blue-black-brown (d) blue-black-red
  37. 37.🌈 In the resistor colour code, which number does grey stand for?
  38. 38.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 6
  2. the one nearest an end
  3. 0
  4. 420
  5. 5 %
  6. blue-violet-brown
  7. yellow-red-red
  8. 1600
  9. 3400
  10. 9
  11. 68
  12. blue-violet-black
  13. 4.4
  14. 29000
  15. brown-red-orange
  16. violet-yellow-red
  17. 35
  18. 80
  19. white-grey-black
  20. 13
  21. grey-black-orange
  22. grey-red-red
  23. 6.7
  24. orange-red-orange
  25. 7
  26. 4.1
  27. 2900
  28. 2
  29. 4
  30. 5
  31. 67
  32. 16
  33. brown-grey-brown
  34. 500
  35. orange-black-red
  36. blue-black-red
  37. 8
  38. 240
  39. 74
  40. 10

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