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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 70 · 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) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) blue-red-orange (b) red-blue-orange (c) blue-red-yellow (d) blue-red-red
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-yellow (b) green-white-red (c) white-green-orange (d) green-white-orange
  6. 6.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-red (b) green-red-brown (c) red-green-black (d) red-green-brown
  9. 9.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) white-brown-black (b) red-white-black (c) brown-white-brown (d) brown-white-black
  11. 11.🌈 A resistor has the colour bands red, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands red, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) orange-white-black (b) red-white-black (c) white-red-black (d) red-white-brown
  20. 20.🌈 In the resistor colour code, which number does violet stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-red (b) green-orange-orange (c) orange-green-orange (d) orange-green-yellow
  22. 22.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) brown-grey-black (b) red-grey-black (c) grey-brown-black (d) brown-grey-brown
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) brown-white-red (b) white-black-brown (c) white-black-red (d) white-black-orange
  25. 25.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does grey stand for?
  27. 27.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-orange (b) orange-brown-red (c) orange-brown-yellow (d) brown-orange-orange
  30. 30.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands green, orange, 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.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) yellow-orange-orange (b) orange-black-yellow (c) orange-black-red (d) orange-black-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) blue-brown-brown (b) brown-blue-red (c) brown-blue-black (d) brown-blue-brown
  37. 37.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) red-violet-brown (b) red-violet-red (c) violet-red-red (d) red-violet-orange
  39. 39.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 87000
  3. 9
  4. blue-red-orange
  5. green-white-orange
  6. 2200
  7. 5 %
  8. red-green-brown
  9. 380
  10. brown-white-black
  11. 2.3
  12. 50
  13. 260
  14. 3.6
  15. 32
  16. 6
  17. 460
  18. 0
  19. red-white-black
  20. 7
  21. orange-green-orange
  22. 9.3
  23. brown-grey-black
  24. white-black-red
  25. 4000
  26. 8
  27. 38000
  28. 600
  29. orange-brown-orange
  30. 2
  31. 53
  32. 50000
  33. 94
  34. 930
  35. orange-black-orange
  36. brown-blue-brown
  37. 61
  38. red-violet-red
  39. 21
  40. 560

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