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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 121 · 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 white, violet, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does blue stand for?
  4. 4.🌈 In the resistor colour code, which number does grey stand for?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) violet-grey-black (b) grey-grey-black (c) violet-grey-brown (d) grey-violet-black
  6. 6.🌈 In the resistor colour code, which number does orange stand for?
  7. 7.🌈 A resistor has the colour bands green, red, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-black (b) blue-brown-brown (c) brown-blue-red (d) brown-blue-brown
  10. 10.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) red-orange-red (c) red-orange-brown (d) orange-red-red
  12. 12.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the gold band (d) the one nearest an end
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-red (b) white-brown-orange (c) brown-white-yellow (d) brown-white-orange
  14. 14.🌈 A resistor has the colour bands grey, yellow, orange. What is its value (in ohms)?
  15. 15.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  16. 16.🌈 A resistor has the colour bands blue, white, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does red stand for?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-orange (b) red-white-red (c) white-red-orange (d) red-white-yellow
  19. 19.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does yellow stand for?
  21. 21.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands green, violet, brown. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) yellow-brown-brown (b) brown-yellow-red (c) brown-yellow-black (d) brown-yellow-brown
  25. 25.🌈 In the resistor colour code, which number does white stand for?
  26. 26.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-red (c) yellow-brown-black (d) yellow-brown-brown
  29. 29.🌈 A resistor has the colour bands red, green, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) blue-green-brown (b) green-black-red (c) green-black-black (d) green-black-brown
  31. 31.🌈 A resistor has the colour bands brown, red, brown. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) white-grey-black (b) grey-grey-brown (c) grey-grey-black (d) grey-white-black
  33. 33.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-orange (b) grey-brown-red (c) brown-grey-brown (d) brown-grey-red
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-brown (b) violet-grey-black (c) grey-blue-black (d) blue-grey-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9700 Ω resistor? (a) white-violet-red (b) white-violet-brown (c) violet-white-red (d) white-violet-orange
  39. 39.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?

Answer key

  1. 97000
  2. 24
  3. 6
  4. 8
  5. violet-grey-black
  6. 3
  7. 52
  8. 1
  9. brown-blue-brown
  10. 5200
  11. red-orange-red
  12. the one nearest an end
  13. brown-white-orange
  14. 84000
  15. 5 %
  16. 690
  17. 2
  18. red-white-orange
  19. 8900
  20. 4
  21. 29
  22. 570
  23. 4.9
  24. brown-yellow-brown
  25. 9
  26. 34
  27. 900
  28. yellow-brown-brown
  29. 250
  30. green-black-brown
  31. 120
  32. grey-grey-black
  33. 1.3
  34. 4.4
  35. 23
  36. brown-grey-red
  37. blue-grey-black
  38. white-violet-red
  39. 380
  40. 3900

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