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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 358 · 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 colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) violet-blue-brown (b) blue-violet-red (c) blue-violet-brown (d) blue-violet-black
  2. 2.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  5. 5.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands orange, white, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 25 % (d) 0 %
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-brown (b) red-orange-black (c) orange-red-black (d) red-red-black
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 890 Ω resistor? (a) white-grey-brown (b) grey-white-red (c) grey-white-brown (d) grey-white-black
  11. 11.🌈 In the resistor colour code, which number does brown stand for?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-red (b) violet-black-brown (c) violet-black-orange (d) grey-violet-red
  13. 13.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does grey stand for?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) red-brown-brown (b) orange-brown-black (c) red-brown-black (d) brown-red-black
  16. 16.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-black (b) red-brown-black (c) brown-brown-brown (d) brown-red-black
  19. 19.🌈 A resistor has the colour bands blue, yellow, brown. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-orange (b) red-violet-brown (c) violet-red-red (d) red-violet-red
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71 Ω resistor? (a) violet-brown-black (b) brown-violet-black (c) grey-brown-black (d) violet-brown-brown
  22. 22.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does black stand for?
  24. 24.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, blue, brown. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, red, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-brown (b) brown-yellow-red (c) yellow-brown-brown (d) brown-yellow-black
  33. 33.🌈 In the resistor colour code, which number does red stand for?
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14 Ω resistor? (a) brown-yellow-brown (b) red-yellow-black (c) brown-yellow-black (d) yellow-brown-black
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42000 Ω resistor? (a) red-yellow-orange (b) yellow-red-yellow (c) yellow-red-orange (d) yellow-red-red
  37. 37.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2900 Ω resistor? (a) red-white-orange (b) white-red-red (c) red-white-red (d) red-white-brown
  40. 40.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. blue-violet-brown
  2. 1900
  3. 4.9
  4. the one nearest an end
  5. 61000
  6. 27
  7. 390
  8. 5 %
  9. red-red-black
  10. grey-white-brown
  11. 1
  12. violet-black-red
  13. 5500
  14. 8
  15. red-brown-black
  16. 34
  17. 1300
  18. brown-brown-black
  19. 640
  20. red-violet-red
  21. violet-brown-black
  22. 37
  23. 0
  24. 31
  25. 51000
  26. 660
  27. 9.1
  28. 5.6
  29. 72
  30. 57
  31. 910
  32. brown-yellow-brown
  33. 2
  34. 7
  35. brown-yellow-black
  36. yellow-red-orange
  37. 80000
  38. 6
  39. red-white-red
  40. 790

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