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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 131 · 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 orange, blue, black. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does white stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 95 Ω resistor? (a) white-green-black (b) white-green-brown (c) green-white-black (d) brown-green-black
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18 Ω resistor? (a) grey-brown-black (b) brown-grey-black (c) red-grey-black (d) brown-grey-brown
  6. 6.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  9. 9.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  10. 10.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  12. 12.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does violet stand for?
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does brown stand for?
  18. 18.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 In the resistor colour code, which number does orange stand for?
  21. 21.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6000 Ω resistor? (a) violet-blue-red (b) blue-black-orange (c) blue-black-brown (d) blue-black-red
  25. 25.🌈 A resistor has the colour bands grey, blue, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, green, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands yellow, white, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands grey, brown, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands green, grey, red. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-red (b) green-yellow-brown (c) yellow-green-brown (d) green-yellow-black
  33. 33.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3200 Ω resistor? (a) red-orange-red (b) orange-red-brown (c) orange-red-red (d) orange-red-orange
  35. 35.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, yellow, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does black stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4400 Ω resistor? (a) yellow-green-red (b) yellow-yellow-brown (c) yellow-yellow-orange (d) yellow-yellow-red

Answer key

  1. 36
  2. 53
  3. 9
  4. white-green-black
  5. brown-grey-black
  6. 95
  7. 2.1
  8. 15
  9. the one nearest an end
  10. 980
  11. 5 %
  12. 970
  13. 51
  14. 7
  15. 2
  16. 700
  17. 1
  18. 5.6
  19. 5
  20. 3
  21. 660
  22. 57000
  23. 74
  24. blue-black-red
  25. 860
  26. 9.5
  27. 49
  28. 67
  29. 81
  30. 48
  31. 5800
  32. green-yellow-brown
  33. 35
  34. orange-red-red
  35. 96
  36. 6500
  37. 270
  38. 7400
  39. 0
  40. yellow-yellow-red

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