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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 184 · 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.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  3. 3.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does black stand for?
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 In the resistor colour code, which number does red stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-red (b) white-brown-yellow (c) white-brown-orange (d) brown-white-orange
  9. 9.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) the gold band (d) any band
  10. 10.🌈 In the resistor colour code, which number does yellow stand for?
  11. 11.🌈 A resistor has the colour bands green, black, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 55 Ω resistor? (a) green-green-brown (b) green-green-black (c) blue-green-black (d) green-blue-black
  14. 14.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands white, orange, orange. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 870 Ω resistor? (a) grey-violet-red (b) grey-violet-black (c) grey-violet-brown (d) violet-grey-brown
  21. 21.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-brown (b) green-grey-red (c) grey-green-red (d) green-grey-orange
  23. 23.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-red (b) orange-blue-orange (c) orange-blue-brown (d) blue-orange-red
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-brown (b) white-black-brown (c) white-white-red (d) white-white-black
  26. 26.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-orange (b) orange-yellow-red (c) orange-yellow-yellow (d) yellow-orange-orange
  28. 28.🌈 A resistor has the colour bands blue, orange, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, yellow, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) brown-white-yellow (d) brown-white-orange
  32. 32.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-brown (b) blue-red-brown (c) red-blue-black (d) red-blue-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-black (b) blue-white-black (c) white-green-black (d) green-white-brown
  35. 35.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) white-orange-brown (b) orange-white-black (c) brown-orange-black (d) white-orange-black
  38. 38.🌈 In the resistor colour code, which number does orange stand for?
  39. 39.🌈 A resistor has the colour bands green, yellow, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 57000
  2. 5 %
  3. 340
  4. 0
  5. 7
  6. 1
  7. 2
  8. white-brown-orange
  9. the one nearest an end
  10. 4
  11. 50
  12. 1.1
  13. green-green-black
  14. 81000
  15. 600
  16. 93000
  17. 48
  18. 7900
  19. 5
  20. grey-violet-brown
  21. 74000
  22. green-grey-red
  23. 97000
  24. orange-blue-red
  25. white-white-brown
  26. 55
  27. orange-yellow-orange
  28. 6.3
  29. 25
  30. 94000
  31. brown-white-orange
  32. 66
  33. red-blue-brown
  34. green-white-black
  35. 47
  36. 26
  37. white-orange-black
  38. 3
  39. 5400
  40. 81

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