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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 174 · 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 gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  4. 4.🌈 In the resistor colour code, which number does green stand for?
  5. 5.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, orange, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-red (b) brown-grey-brown (c) grey-brown-brown (d) brown-grey-black
  12. 12.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands brown, brown, red. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands green, grey, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 990 Ω resistor? (a) white-white-brown (b) white-black-brown (c) white-white-black (d) white-white-red
  16. 16.🌈 A resistor has the colour bands orange, red, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does black stand for?
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 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
  22. 22.🌈 A resistor has the colour bands orange, violet, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does violet stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22000 Ω resistor? (a) red-red-red (b) red-red-orange (c) red-orange-orange (d) red-red-yellow
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 810 Ω resistor? (a) grey-brown-red (b) grey-brown-brown (c) grey-brown-black (d) brown-grey-brown
  29. 29.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) yellow-white-red (b) yellow-white-orange (c) white-yellow-orange (d) yellow-white-yellow
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) violet-brown-black (b) brown-blue-black (c) blue-brown-brown (d) blue-brown-black
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  36. 36.🌈 In the resistor colour code, which number does grey stand for?
  37. 37.🌈 A resistor has the colour bands red, brown, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) violet-white-black (b) white-violet-black (c) brown-violet-black (d) white-violet-brown
  39. 39.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-brown (b) white-green-orange (c) white-green-red (d) green-white-red

Answer key

  1. 5 %
  2. 9.6
  3. 58
  4. 5
  5. 43
  6. 6.9
  7. 62
  8. 7.9
  9. 300
  10. 9.3
  11. brown-grey-brown
  12. 28
  13. 1100
  14. 5.8
  15. white-white-brown
  16. 32
  17. 2900
  18. 0
  19. 3
  20. 7.1
  21. blue-brown-red
  22. 37
  23. 51000
  24. 750
  25. 7
  26. red-red-orange
  27. 6
  28. grey-brown-brown
  29. the one nearest an end
  30. yellow-white-orange
  31. blue-brown-black
  32. 9
  33. 1.6
  34. 1
  35. 22
  36. 8
  37. 2.1
  38. white-violet-black
  39. 89000
  40. white-green-red

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