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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 658 · 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 50 Ω resistor? (a) blue-green-black (b) blue-black-black (c) green-black-brown (d) green-black-black
  2. 2.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) violet-blue-red (c) blue-violet-red (d) violet-blue-brown
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) white-yellow-brown (b) brown-yellow-black (c) yellow-white-black (d) white-yellow-black
  7. 7.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31 Ω resistor? (a) brown-orange-black (b) orange-brown-black (c) orange-brown-brown (d) yellow-brown-black
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1300 Ω resistor? (a) brown-orange-red (b) brown-orange-orange (c) brown-orange-brown (d) orange-brown-red
  10. 10.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) the widest gap (d) any band
  13. 13.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, green, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3300 Ω resistor? (a) orange-yellow-red (b) orange-orange-red (c) orange-orange-brown (d) orange-orange-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-white-black (b) grey-grey-black (c) grey-grey-brown (d) white-grey-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) green-orange-orange (b) orange-green-red (c) orange-green-yellow (d) orange-green-orange
  20. 20.🌈 In the resistor colour code, which number does yellow stand for?
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 630 Ω resistor? (a) orange-blue-brown (b) blue-orange-brown (c) blue-orange-black (d) blue-orange-red
  25. 25.🌈 In the resistor colour code, which number does white stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) brown-red-black (c) red-red-black (d) red-brown-black
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, black, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) blue-white-red (b) white-blue-brown (c) white-blue-red (d) white-blue-orange
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 81 Ω resistor? (a) white-brown-black (b) brown-grey-black (c) grey-brown-brown (d) grey-brown-black
  33. 33.🌈 In the resistor colour code, which number does brown stand for?
  34. 34.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1000 Ω resistor? (a) brown-black-orange (b) red-brown-red (c) brown-black-red (d) brown-black-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 8800 Ω resistor? (a) grey-grey-brown (b) grey-white-red (c) grey-grey-orange (d) grey-grey-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 910 Ω resistor? (a) brown-white-brown (b) white-brown-brown (c) white-brown-red (d) white-brown-black
  38. 38.🌈 In the resistor colour code, which number does violet stand for?
  39. 39.🌈 In the resistor colour code, which number does blue stand for?
  40. 40.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. green-black-black
  2. 8800
  3. 0
  4. 5 %
  5. violet-blue-red
  6. white-yellow-black
  7. 62
  8. orange-brown-black
  9. brown-orange-red
  10. 670
  11. 8.3
  12. the one nearest an end
  13. 66
  14. 35
  15. 2.7
  16. 41
  17. orange-orange-red
  18. grey-grey-black
  19. orange-green-orange
  20. 4
  21. 8
  22. 2.9
  23. 86000
  24. blue-orange-brown
  25. 9
  26. brown-red-black
  27. 3
  28. 98000
  29. 4000
  30. 9600
  31. white-blue-red
  32. grey-brown-black
  33. 1
  34. 28
  35. brown-black-red
  36. grey-grey-red
  37. white-brown-brown
  38. 7
  39. 6
  40. 660

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