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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 698 · 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) the widest gap (d) any band
  2. 2.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) brown-red-orange (d) brown-red-yellow
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43 Ω resistor? (a) yellow-orange-brown (b) green-orange-black (c) orange-yellow-black (d) yellow-orange-black
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-black (b) brown-green-brown (c) green-brown-brown (d) green-brown-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28 Ω resistor? (a) red-grey-brown (b) red-grey-black (c) grey-red-black (d) orange-grey-black
  9. 9.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 16000 Ω resistor? (a) brown-blue-yellow (b) blue-brown-orange (c) brown-blue-orange (d) brown-blue-red
  14. 14.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  15. 15.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5900 Ω resistor? (a) green-white-brown (b) green-white-red (c) white-green-red (d) green-white-orange
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-brown (c) white-brown-black (d) white-brown-red
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands red, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) yellow-grey-orange (b) grey-yellow-red (c) grey-yellow-yellow (d) grey-yellow-orange
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) white-yellow-brown (b) white-yellow-black (c) yellow-white-black (d) brown-yellow-black
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 450 Ω resistor? (a) yellow-green-black (b) yellow-green-brown (c) green-yellow-brown (d) yellow-green-red
  24. 24.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, blue, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does violet stand for?
  28. 28.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-brown (b) yellow-black-red (c) yellow-black-orange (d) green-yellow-red
  30. 30.🌈 A resistor has the colour bands yellow, grey, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 560 Ω resistor? (a) green-blue-red (b) green-blue-brown (c) blue-green-brown (d) green-blue-black
  34. 34.🌈 A resistor has the colour bands yellow, blue, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) red-brown-brown (b) brown-red-brown (c) brown-red-black (d) brown-red-red
  36. 36.🌈 A resistor has the colour bands yellow, green, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44000 Ω resistor? (a) yellow-yellow-orange (b) yellow-green-orange (c) yellow-yellow-yellow (d) yellow-yellow-red
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 100
  3. 57
  4. 990
  5. brown-red-orange
  6. yellow-orange-black
  7. green-brown-brown
  8. red-grey-black
  9. 3.9
  10. 35
  11. 1
  12. 910
  13. brown-blue-orange
  14. 77000
  15. 5 %
  16. green-white-red
  17. white-brown-brown
  18. 9
  19. 3
  20. 23
  21. grey-yellow-orange
  22. white-yellow-black
  23. yellow-green-brown
  24. 100
  25. 1600
  26. 94000
  27. 7
  28. 690
  29. yellow-black-red
  30. 4800
  31. 18
  32. 50000
  33. green-blue-brown
  34. 4.6
  35. brown-red-brown
  36. 450
  37. 38
  38. yellow-yellow-orange
  39. 5
  40. 3.8

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