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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 560 · 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 brown, blue, orange. What is its value (in ohms)?
  2. 2.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 5 % (d) 25 %
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  5. 5.🌈 A resistor has the colour bands red, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) brown-white-orange (b) white-brown-orange (c) white-brown-yellow (d) white-brown-red
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-black (b) red-orange-black (c) orange-red-black (d) red-red-brown
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) orange-blue-brown (c) blue-orange-red (d) orange-blue-red
  10. 10.🌈 In the resistor colour code, which number does black stand for?
  11. 11.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6600 Ω resistor? (a) blue-violet-red (b) blue-blue-brown (c) blue-blue-orange (d) blue-blue-red
  13. 13.🌈 A resistor has the colour bands orange, blue, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, blue, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands blue, green, red. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 90000 Ω resistor? (a) white-black-red (b) white-black-yellow (c) white-black-orange (d) brown-white-orange
  18. 18.🌈 In the resistor colour code, which number does green stand for?
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does yellow stand for?
  22. 22.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-yellow-black (b) green-yellow-black (c) yellow-yellow-brown (d) yellow-green-black
  24. 24.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-brown (c) brown-yellow-black (d) brown-yellow-red
  26. 26.🌈 A resistor has the colour bands yellow, blue, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands green, black, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, red, red. What is its value (in ohms)?
  32. 32.🌈 In the resistor colour code, which number does violet stand for?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) yellow-white-red (b) white-yellow-red (c) white-yellow-brown (d) white-yellow-orange
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 780 Ω resistor? (a) violet-grey-red (b) violet-grey-brown (c) violet-grey-black (d) grey-violet-brown
  35. 35.🌈 A resistor has the colour bands orange, green, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) orange-yellow-black (b) orange-orange-brown (c) yellow-orange-black (d) orange-orange-black
  39. 39.🌈 A resistor has the colour bands blue, orange, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-red (b) green-yellow-orange (c) yellow-black-orange (d) yellow-black-yellow

Answer key

  1. 16000
  2. 870
  3. 5 %
  4. the one nearest an end
  5. 280
  6. 70
  7. white-brown-orange
  8. red-red-black
  9. orange-blue-red
  10. 0
  11. 97000
  12. blue-blue-red
  13. 36000
  14. 3.6
  15. 6
  16. 6500
  17. white-black-orange
  18. 5
  19. 2
  20. 350
  21. 4
  22. 380
  23. yellow-yellow-black
  24. 5.2
  25. brown-yellow-brown
  26. 4600
  27. 33
  28. 950
  29. 7900
  30. 50
  31. 3200
  32. 7
  33. white-yellow-red
  34. violet-grey-brown
  35. 3.5
  36. 21
  37. 58
  38. orange-orange-black
  39. 630
  40. yellow-black-orange

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