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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 337 · 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) 0 % (b) 50 % (c) 5 % (d) 25 %
  2. 2.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  3. 3.🌈 A resistor has the colour bands white, black, black. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) brown-brown-black (b) white-brown-brown (c) brown-white-black (d) white-brown-black
  5. 5.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does yellow stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-black (b) white-black-red (c) white-black-brown (d) brown-white-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9600 Ω resistor? (a) white-blue-brown (b) white-blue-red (c) white-blue-orange (d) blue-white-red
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88000 Ω resistor? (a) grey-grey-red (b) grey-white-orange (c) grey-grey-orange (d) grey-grey-yellow
  12. 12.🌈 A resistor has the colour bands violet, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90 Ω resistor? (a) brown-white-black (b) brown-black-black (c) white-black-brown (d) white-black-black
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands white, violet, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, blue, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands red, brown, orange. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands white, red, red. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) violet-yellow-black (b) yellow-violet-black (c) violet-yellow-brown (d) grey-yellow-black
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) red-yellow-brown (b) yellow-red-brown (c) yellow-red-black (d) yellow-red-red
  27. 27.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) white-grey-brown (b) grey-black-red (c) grey-black-black (d) grey-black-brown
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-red (b) white-violet-brown (c) white-violet-black (d) violet-white-brown
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 750 Ω resistor? (a) violet-green-red (b) green-violet-brown (c) violet-green-brown (d) violet-green-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96000 Ω resistor? (a) blue-white-orange (b) white-blue-yellow (c) white-blue-orange (d) white-blue-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-red (b) yellow-blue-orange (c) blue-yellow-orange (d) blue-yellow-yellow
  35. 35.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 97 Ω resistor? (a) white-violet-black (b) brown-violet-black (c) white-violet-brown (d) violet-white-black
  37. 37.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 640 Ω resistor? (a) blue-yellow-red (b) blue-yellow-black (c) yellow-blue-brown (d) blue-yellow-brown
  39. 39.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  40. 40.🌈 In the resistor colour code, which number does white stand for?

Answer key

  1. 5 %
  2. the one nearest an end
  3. 90
  4. white-brown-black
  5. 1.6
  6. 40
  7. 4
  8. white-black-brown
  9. white-blue-red
  10. 3
  11. grey-grey-orange
  12. 760
  13. 46
  14. 4600
  15. white-black-black
  16. 5
  17. 86
  18. 53
  19. 0
  20. 9700
  21. 8600
  22. 21000
  23. 9200
  24. 190
  25. violet-yellow-black
  26. yellow-red-brown
  27. 1.3
  28. grey-black-brown
  29. 7
  30. 66000
  31. white-violet-brown
  32. violet-green-brown
  33. white-blue-orange
  34. blue-yellow-orange
  35. 74
  36. white-violet-black
  37. 36
  38. blue-yellow-brown
  39. 270
  40. 9

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