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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 101 · 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 610 Ω resistor? (a) blue-brown-black (b) brown-blue-brown (c) blue-brown-brown (d) blue-brown-red
  2. 2.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does violet stand for?
  6. 6.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  8. 8.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 In the resistor colour code, which number does green stand for?
  12. 12.🌈 A resistor has the colour bands grey, green, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands brown, red, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 72 Ω resistor? (a) violet-red-brown (b) red-violet-black (c) grey-red-black (d) violet-red-black
  15. 15.🌈 In the resistor colour code, which number does brown stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 430 Ω resistor? (a) orange-yellow-brown (b) yellow-orange-brown (c) yellow-orange-red (d) yellow-orange-black
  17. 17.🌈 In the resistor colour code, which number does orange stand for?
  18. 18.🌈 In the resistor colour code, which number does blue stand for?
  19. 19.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  20. 20.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-red (b) orange-brown-yellow (c) brown-orange-orange (d) orange-brown-orange
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-red (c) grey-green-orange (d) green-grey-orange
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 590 Ω resistor? (a) green-white-black (b) white-green-brown (c) green-white-brown (d) green-white-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 65 Ω resistor? (a) blue-green-brown (b) blue-green-black (c) violet-green-black (d) green-blue-black
  28. 28.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-white-orange (b) grey-grey-orange (c) grey-grey-red (d) grey-grey-yellow
  30. 30.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, green, black. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) brown-grey-red (b) brown-grey-yellow (c) grey-brown-orange (d) brown-grey-orange
  33. 33.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, yellow, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, yellow, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-brown (b) brown-grey-red (c) brown-grey-black (d) grey-brown-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) violet-red-brown (b) violet-red-black (c) red-violet-brown (d) violet-red-red
  40. 40.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?

Answer key

  1. blue-brown-brown
  2. 1100
  3. 790
  4. 730
  5. 7
  6. 5800
  7. 5 %
  8. 20
  9. 8.4
  10. 540
  11. 5
  12. 8500
  13. 12
  14. violet-red-black
  15. 1
  16. yellow-orange-brown
  17. 3
  18. 6
  19. 58000
  20. the one nearest an end
  21. orange-brown-orange
  22. green-grey-orange
  23. 2
  24. 7700
  25. 60
  26. green-white-brown
  27. blue-green-black
  28. 5.8
  29. grey-grey-orange
  30. 6.8
  31. 35
  32. brown-grey-orange
  33. 60
  34. 940
  35. 7.4
  36. 24000
  37. 670
  38. brown-grey-brown
  39. violet-red-brown
  40. 14000

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