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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 502 · 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 gold band (b) the widest gap (c) any band (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 A resistor has the colour bands brown, brown, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) yellow-white-brown (b) white-yellow-black (c) white-yellow-red (d) white-yellow-brown
  6. 6.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  13. 13.🌈 In the resistor colour code, which number does black stand for?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-brown (b) white-yellow-orange (c) white-yellow-red (d) yellow-white-red
  15. 15.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-brown (b) blue-yellow-black (c) yellow-blue-black (d) green-blue-black
  18. 18.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-red (c) brown-green-yellow (d) brown-green-orange
  20. 20.🌈 A resistor has the colour bands blue, brown, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6800 Ω resistor? (a) grey-blue-red (b) blue-grey-brown (c) blue-grey-red (d) blue-grey-orange
  22. 22.🌈 A resistor has the colour bands red, white, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, orange, brown. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-brown (b) blue-yellow-black (c) yellow-blue-brown (d) blue-yellow-red
  32. 32.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 A resistor has the colour bands grey, green, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) yellow-white-black (b) white-yellow-brown (c) brown-yellow-black (d) white-yellow-black

Answer key

  1. the one nearest an end
  2. 80
  3. 9
  4. 11
  5. white-yellow-brown
  6. 950
  7. 1
  8. 7400
  9. 7
  10. 4
  11. 690
  12. 5 %
  13. 0
  14. white-yellow-red
  15. 670
  16. 320
  17. yellow-blue-black
  18. 89
  19. brown-green-orange
  20. 6100
  21. blue-grey-red
  22. 29000
  23. 56000
  24. 310
  25. 9.1
  26. 51000
  27. 930
  28. 860
  29. 120
  30. 610
  31. blue-yellow-brown
  32. 93
  33. 5
  34. 850
  35. 29
  36. 210
  37. 190
  38. 100
  39. 2.5
  40. white-yellow-black

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