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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 204 · 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 62 Ω resistor? (a) blue-red-brown (b) violet-red-black (c) red-blue-black (d) blue-red-black
  2. 2.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) white-brown-black (b) brown-grey-black (c) grey-brown-brown (d) grey-brown-black
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the one nearest an end (d) the widest gap
  5. 5.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands white, white, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 In the resistor colour code, which number does green stand for?
  10. 10.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) brown-yellow-black (b) green-brown-black (c) yellow-brown-black (d) yellow-brown-brown
  12. 12.🌈 A resistor has the colour bands violet, white, orange. What is its value (in ohms)?
  13. 13.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  14. 14.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-brown (b) brown-brown-red (c) brown-brown-black (d) brown-red-brown
  18. 18.🌈 A resistor has the colour bands brown, yellow, red. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) violet-yellow-yellow (b) violet-yellow-red (c) yellow-violet-orange (d) violet-yellow-orange
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-red (b) blue-green-orange (c) green-blue-orange (d) green-blue-yellow
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) violet-blue-orange (b) blue-black-yellow (c) blue-black-red (d) blue-black-orange
  27. 27.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2000 Ω resistor? (a) red-black-orange (b) orange-red-red (c) red-black-brown (d) red-black-red
  30. 30.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands white, red, red. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands violet, grey, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-violet-red (b) violet-violet-brown (c) violet-grey-red (d) violet-violet-orange
  35. 35.🌈 In the resistor colour code, which number does grey stand for?
  36. 36.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) white-violet-black (b) violet-white-brown (c) grey-white-black (d) violet-white-black
  38. 38.🌈 In the resistor colour code, which number does black stand for?
  39. 39.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands grey, orange, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. blue-red-black
  2. 570
  3. grey-brown-black
  4. the one nearest an end
  5. 89
  6. 99000
  7. 88
  8. 2
  9. 5
  10. 9.2
  11. yellow-brown-black
  12. 79000
  13. 5 %
  14. 1.4
  15. 70
  16. 4.7
  17. brown-brown-brown
  18. 1400
  19. 2.4
  20. 9.7
  21. violet-yellow-orange
  22. 1
  23. 23000
  24. 870
  25. green-blue-orange
  26. blue-black-orange
  27. 3
  28. 17
  29. red-black-red
  30. 26000
  31. 9200
  32. 78
  33. 9
  34. violet-violet-red
  35. 8
  36. 42
  37. violet-white-black
  38. 0
  39. 93
  40. 830

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