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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 157 · 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) any band (b) the widest gap (c) the one nearest an end (d) the gold band
  2. 2.🌈 A resistor has the colour bands white, white, orange. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) white-green-orange (b) green-white-red (c) green-white-orange (d) green-white-yellow
  5. 5.🌈 A resistor has the colour bands red, red, red. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35000 Ω resistor? (a) orange-green-orange (b) green-orange-orange (c) orange-green-red (d) orange-green-yellow
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  10. 10.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, black, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does red stand for?
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) red-brown-brown (b) brown-red-red (c) brown-red-brown (d) brown-red-black
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-yellow (b) blue-grey-orange (c) grey-blue-orange (d) grey-blue-red
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-orange (b) red-red-red (c) red-orange-red (d) red-red-brown
  20. 20.🌈 A resistor has the colour bands green, brown, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, violet, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34000 Ω resistor? (a) orange-yellow-yellow (b) orange-yellow-orange (c) orange-yellow-red (d) yellow-orange-orange
  25. 25.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-brown (b) brown-red-brown (c) brown-brown-red (d) brown-brown-black
  27. 27.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) red-brown-brown (b) red-brown-red (c) brown-red-brown (d) red-brown-black
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-black (b) blue-blue-red (c) blue-blue-brown (d) blue-violet-brown
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9300 Ω resistor? (a) white-orange-orange (b) white-orange-brown (c) orange-white-red (d) white-orange-red
  32. 32.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 51000 Ω resistor? (a) brown-green-orange (b) green-brown-red (c) green-brown-yellow (d) green-brown-orange
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7500 Ω resistor? (a) violet-green-red (b) green-violet-red (c) violet-green-orange (d) violet-green-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 800 Ω resistor? (a) grey-black-red (b) grey-black-brown (c) grey-black-black (d) white-grey-brown
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) yellow-orange-black (b) yellow-yellow-black (c) orange-yellow-brown (d) orange-yellow-black
  40. 40.🌈 A resistor has the colour bands brown, violet, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. the one nearest an end
  2. 99
  3. 1
  4. green-white-orange
  5. 2200
  6. 0
  7. 54
  8. orange-green-orange
  9. 5 %
  10. 510
  11. 46
  12. 4700
  13. 40000
  14. 200
  15. 2
  16. 5
  17. brown-red-brown
  18. grey-blue-orange
  19. red-red-red
  20. 5100
  21. 3700
  22. 69
  23. 75
  24. orange-yellow-orange
  25. 600
  26. brown-brown-brown
  27. 2.6
  28. red-brown-brown
  29. 7
  30. blue-blue-brown
  31. white-orange-red
  32. 16
  33. 6600
  34. 8.4
  35. 43
  36. green-brown-orange
  37. violet-green-red
  38. grey-black-brown
  39. orange-yellow-black
  40. 1.7

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