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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 660 · 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) 5 % (b) 25 % (c) 50 % (d) 0 %
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  3. 3.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-yellow (b) green-brown-red (c) green-brown-orange (d) brown-green-orange
  5. 5.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) green-white-red (b) white-green-brown (c) white-green-orange (d) white-green-red
  7. 7.🌈 A resistor has the colour bands orange, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8100 Ω resistor? (a) brown-grey-red (b) grey-brown-brown (c) grey-brown-red (d) grey-brown-orange
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) grey-blue-brown (b) grey-blue-black (c) blue-grey-brown (d) grey-blue-red
  10. 10.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) blue-red-black (b) red-blue-black (c) orange-blue-black (d) red-blue-brown
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-yellow (b) white-yellow-red (c) white-yellow-orange (d) yellow-white-orange
  14. 14.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-brown (c) yellow-brown-red (d) yellow-brown-black
  17. 17.🌈 A resistor has the colour bands violet, orange, red. What is its value (in ohms)?
  18. 18.🌈 In the resistor colour code, which number does white stand for?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does green stand for?
  25. 25.🌈 A resistor has the colour bands blue, violet, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56 Ω resistor? (a) green-blue-black (b) green-blue-brown (c) blue-blue-black (d) blue-green-black
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) blue-orange-red (b) orange-blue-brown (c) orange-blue-orange (d) orange-blue-red
  30. 30.🌈 A resistor has the colour bands red, orange, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54000 Ω resistor? (a) yellow-green-orange (b) green-yellow-yellow (c) green-yellow-orange (d) green-yellow-red
  32. 32.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does orange stand for?
  35. 35.🌈 A resistor has the colour bands red, brown, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 98 Ω resistor? (a) white-grey-brown (b) white-grey-black (c) grey-white-black (d) brown-grey-black
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) yellow-orange-black (b) orange-yellow-black (c) yellow-yellow-black (d) orange-yellow-brown
  39. 39.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, red, black. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. 7800
  4. green-brown-orange
  5. 25
  6. white-green-red
  7. 310
  8. grey-brown-red
  9. grey-blue-brown
  10. 20000
  11. 4.1
  12. red-blue-black
  13. white-yellow-orange
  14. 7.3
  15. 6
  16. yellow-brown-brown
  17. 7300
  18. 9
  19. 0
  20. 22
  21. 67
  22. 980
  23. 92
  24. 5
  25. 6.7
  26. 4
  27. 99
  28. green-blue-black
  29. orange-blue-red
  30. 23000
  31. green-yellow-orange
  32. 23
  33. 6200
  34. 3
  35. 21
  36. white-grey-black
  37. 7
  38. orange-yellow-black
  39. 7.6
  40. 82

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