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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 566 · 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 band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) yellow-orange-black (b) orange-orange-brown (c) orange-yellow-black (d) orange-orange-black
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 100 Ω resistor? (a) brown-black-red (b) brown-black-brown (c) brown-black-black (d) red-brown-brown
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 5 % (d) 25 %
  5. 5.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does brown stand for?
  7. 7.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) yellow-green-red (b) green-yellow-orange (c) yellow-green-yellow (d) yellow-green-orange
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-yellow (b) brown-white-orange (c) brown-white-red (d) white-brown-orange
  10. 10.🌈 In the resistor colour code, which number does orange stand for?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-orange (b) white-brown-brown (c) brown-white-red (d) white-brown-red
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) blue-white-brown (b) white-blue-brown (c) white-blue-red (d) white-blue-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) red-violet-black (b) brown-violet-brown (c) violet-brown-black (d) brown-violet-black
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-black (b) green-grey-brown (c) grey-green-brown (d) green-grey-red
  15. 15.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does yellow stand for?
  18. 18.🌈 A resistor has the colour bands orange, orange, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) green-brown-red (b) brown-green-orange (c) green-brown-yellow (d) green-brown-orange
  24. 24.🌈 In the resistor colour code, which number does blue stand for?
  25. 25.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does white stand for?
  30. 30.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does grey stand for?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-brown (c) brown-yellow-red (d) brown-yellow-black
  33. 33.🌈 A resistor has the colour bands brown, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does red stand for?
  36. 36.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands red, green, red. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does black stand for?
  40. 40.🌈 A resistor has the colour bands brown, brown, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. orange-orange-black
  3. brown-black-brown
  4. 5 %
  5. 430
  6. 1
  7. 92
  8. yellow-green-orange
  9. brown-white-orange
  10. 3
  11. white-brown-red
  12. white-blue-brown
  13. brown-violet-black
  14. green-grey-brown
  15. 90
  16. 54
  17. 4
  18. 330
  19. 630
  20. 1.8
  21. 5
  22. 4600
  23. green-brown-orange
  24. 6
  25. 990
  26. 56
  27. 13
  28. 88
  29. 9
  30. 7.6
  31. 8
  32. brown-yellow-brown
  33. 180
  34. 190
  35. 2
  36. 29
  37. 210
  38. 2500
  39. 0
  40. 11

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