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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 707 · 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 band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-yellow (b) green-orange-orange (c) orange-green-red (d) orange-green-orange
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-yellow (b) grey-orange-orange (c) orange-grey-orange (d) grey-orange-red
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 600 Ω resistor? (a) blue-black-brown (b) violet-blue-brown (c) blue-black-black (d) blue-black-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) violet-green-black (b) blue-violet-black (c) green-violet-black (d) green-violet-brown
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 920 Ω resistor? (a) red-white-brown (b) white-red-red (c) white-red-brown (d) white-red-black
  11. 11.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8000 Ω resistor? (a) white-grey-red (b) grey-black-red (c) grey-black-brown (d) grey-black-orange
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) blue-white-brown (b) white-blue-red (c) blue-white-orange (d) blue-white-red
  16. 16.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-red (b) orange-yellow-yellow (c) yellow-orange-orange (d) orange-yellow-orange
  18. 18.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 A resistor has the colour bands blue, green, black. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-brown (b) blue-yellow-orange (c) yellow-blue-red (d) blue-yellow-red
  22. 22.🌈 In the resistor colour code, which number does yellow stand for?
  23. 23.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  24. 24.🌈 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
  25. 25.🌈 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
  26. 26.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  27. 27.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) grey-white-black (b) violet-white-brown (c) white-violet-black (d) violet-white-black
  30. 30.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands blue, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-brown (b) yellow-white-red (c) white-yellow-orange (d) white-yellow-red
  33. 33.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86 Ω resistor? (a) grey-blue-brown (b) white-blue-black (c) blue-grey-black (d) grey-blue-black
  35. 35.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, green, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. orange-green-orange
  3. 7
  4. 8.7
  5. 2.6
  6. grey-orange-orange
  7. blue-black-brown
  8. green-violet-black
  9. 3
  10. white-red-brown
  11. 72
  12. 8
  13. 4.7
  14. grey-black-red
  15. blue-white-red
  16. 6500
  17. orange-yellow-orange
  18. 350
  19. 5
  20. 65
  21. blue-yellow-red
  22. 4
  23. 23000
  24. brown-yellow-brown
  25. brown-white-brown
  26. 5 %
  27. 8200
  28. 0
  29. violet-white-black
  30. 50
  31. 640
  32. white-yellow-red
  33. 7
  34. grey-blue-black
  35. 150
  36. 59000
  37. 15
  38. 750
  39. 2.8
  40. 29

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