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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 642 · 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 an 8600 Ω resistor? (a) grey-blue-red (b) blue-grey-red (c) grey-blue-orange (d) grey-blue-brown
  2. 2.🌈 In the resistor colour code, which number does green stand for?
  3. 3.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 A resistor has the colour bands brown, yellow, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) grey-violet-black (b) grey-black-black (c) violet-black-black (d) violet-black-brown
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 5 % (c) 25 % (d) 50 %
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-brown (b) red-brown-brown (c) brown-red-red (d) brown-red-black
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) blue-red-black (b) orange-blue-black (c) red-blue-black (d) red-blue-brown
  12. 12.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  13. 13.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) brown-violet-black (b) brown-violet-brown (c) violet-brown-black (d) red-violet-black
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-black (c) green-brown-black (d) yellow-brown-black
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands yellow, violet, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, brown, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, green, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands yellow, red, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands blue, brown, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) yellow-violet-black (b) grey-yellow-black (c) violet-yellow-black (d) violet-yellow-brown
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) white-brown-black (b) red-white-black (c) brown-white-black (d) brown-white-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-black (b) orange-brown-brown (c) brown-orange-red (d) brown-orange-brown
  32. 32.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85 Ω resistor? (a) grey-green-brown (b) grey-green-black (c) white-green-black (d) green-grey-black
  34. 34.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands grey, white, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-black (b) white-black-black (c) white-white-brown (d) brown-white-black
  39. 39.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?

Answer key

  1. grey-blue-red
  2. 5
  3. 2.1
  4. 8
  5. 14
  6. violet-black-black
  7. 4
  8. 1
  9. 5 %
  10. brown-red-brown
  11. red-blue-black
  12. the one nearest an end
  13. 31
  14. brown-violet-black
  15. 7
  16. yellow-brown-black
  17. 2
  18. 120
  19. 0
  20. 470
  21. 41000
  22. 45
  23. 36000
  24. 57000
  25. 4200
  26. 5.1
  27. 6
  28. 610
  29. violet-yellow-black
  30. brown-white-black
  31. brown-orange-brown
  32. 12
  33. grey-green-black
  34. 9.6
  35. 890
  36. 530
  37. 680
  38. white-white-black
  39. 94
  40. 2200

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