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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 681 · 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 green stand for?
  2. 2.🌈 A resistor has the colour bands blue, violet, red. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) any band (c) the gold band (d) the widest gap
  4. 4.🌈 In the resistor colour code, which number does brown stand for?
  5. 5.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-brown (b) yellow-red-red (c) yellow-red-orange (d) red-yellow-red
  7. 7.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  9. 9.🌈 In the resistor colour code, which number does blue stand for?
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands white, red, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does white stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-black (c) violet-yellow-black (d) grey-yellow-black
  16. 16.🌈 In the resistor colour code, which number does violet stand for?
  17. 17.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 400 Ω resistor? (a) yellow-black-black (b) yellow-black-red (c) green-yellow-brown (d) yellow-black-brown
  20. 20.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-orange (b) green-white-red (c) white-green-red (d) white-green-brown
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) blue-violet-yellow (b) blue-violet-orange (c) violet-blue-orange (d) blue-violet-red
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-orange (b) blue-white-red (c) white-blue-red (d) white-blue-brown
  25. 25.🌈 A resistor has the colour bands blue, orange, black. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, blue, orange. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-red (b) white-black-brown (c) brown-white-brown (d) white-black-black
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) white-blue-brown (c) brown-blue-black (d) white-blue-black
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99000 Ω resistor? (a) white-white-red (b) white-white-yellow (c) white-black-orange (d) white-white-orange
  32. 32.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does red stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) red-brown-black (b) brown-brown-black (c) brown-red-black (d) brown-brown-brown
  36. 36.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76 Ω resistor? (a) violet-blue-brown (b) blue-violet-black (c) grey-blue-black (d) violet-blue-black

Answer key

  1. 5
  2. 6700
  3. the one nearest an end
  4. 1
  5. 190
  6. yellow-red-red
  7. 6600
  8. 5 %
  9. 6
  10. 4
  11. 910
  12. 920
  13. 6.3
  14. 9
  15. violet-yellow-black
  16. 7
  17. 8800
  18. 390
  19. yellow-black-brown
  20. 1200
  21. white-green-red
  22. blue-violet-orange
  23. 8
  24. white-blue-red
  25. 63
  26. 83
  27. 57000
  28. 16000
  29. white-black-brown
  30. white-blue-black
  31. white-white-orange
  32. 410
  33. 4.4
  34. 2
  35. brown-brown-black
  36. 22
  37. 89
  38. 4
  39. 60
  40. violet-blue-black

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