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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 156 · 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 56 Ω resistor? (a) blue-blue-black (b) green-blue-brown (c) blue-green-black (d) green-blue-black
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30 Ω resistor? (a) orange-black-black (b) orange-black-brown (c) yellow-orange-black (d) yellow-black-black
  11. 11.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, red, red. What is its value (in ohms)?
  14. 14.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the gold band (c) any band (d) the widest gap
  15. 15.🌈 A resistor has the colour bands grey, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) blue-brown-brown (b) brown-blue-black (c) blue-brown-black (d) violet-brown-black
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 89000 Ω resistor? (a) grey-white-orange (b) white-grey-orange (c) grey-white-red (d) grey-white-yellow
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 130 Ω resistor? (a) brown-orange-red (b) brown-orange-black (c) brown-orange-brown (d) orange-brown-brown
  21. 21.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-brown (b) brown-blue-red (c) blue-brown-red (d) blue-brown-orange
  24. 24.🌈 A resistor has the colour bands green, orange, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does orange stand for?
  26. 26.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-brown (b) white-black-orange (c) white-black-red (d) brown-white-red
  28. 28.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) orange-red-orange (b) red-orange-red (c) orange-red-brown (d) orange-red-red
  31. 31.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does red stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 820 Ω resistor? (a) red-grey-brown (b) grey-red-black (c) grey-red-brown (d) grey-red-red
  34. 34.🌈 A resistor has the colour bands white, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, yellow, red. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, white, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands red, violet, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. green-blue-black
  2. 0
  3. 5 %
  4. 2.4
  5. 320
  6. 80
  7. 910
  8. 41
  9. 2500
  10. orange-black-black
  11. 1.5
  12. 2.7
  13. 8200
  14. the one nearest an end
  15. 870
  16. blue-brown-black
  17. 5
  18. 26
  19. grey-white-orange
  20. brown-orange-brown
  21. 290
  22. 9
  23. blue-brown-red
  24. 530
  25. 3
  26. 4
  27. white-black-red
  28. 450
  29. 6600
  30. orange-red-red
  31. 810
  32. 2
  33. grey-red-brown
  34. 990
  35. 4400
  36. 96
  37. 8.2
  38. 5.9
  39. 2700
  40. 20

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