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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 91 · 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.🌈 In the resistor colour code, which number does green stand for?
  2. 2.🌈 In the resistor colour code, which number does yellow stand for?
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 A resistor has the colour bands white, grey, brown. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3400 Ω resistor? (a) orange-yellow-orange (b) orange-yellow-red (c) orange-yellow-brown (d) yellow-orange-red
  10. 10.🌈 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
  11. 11.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) yellow-green-black (b) orange-green-black (c) orange-green-brown (d) green-orange-black
  13. 13.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands orange, blue, orange. 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 violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands violet, green, brown. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-brown (b) white-red-orange (c) white-red-red (d) red-white-red
  19. 19.🌈 A resistor has the colour bands violet, brown, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands grey, yellow, red. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 71000 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) brown-violet-orange (d) violet-brown-yellow
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-orange (b) yellow-green-red (c) green-yellow-red (d) yellow-green-brown
  24. 24.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 740 Ω resistor? (a) yellow-violet-brown (b) violet-yellow-black (c) violet-yellow-brown (d) violet-yellow-red
  26. 26.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands green, orange, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands violet, brown, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3500 Ω resistor? (a) orange-green-brown (b) orange-green-red (c) green-orange-red (d) orange-green-orange
  31. 31.🌈 In the resistor colour code, which number does black stand for?
  32. 32.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91000 Ω resistor? (a) white-brown-red (b) white-brown-yellow (c) white-brown-orange (d) brown-white-orange
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 960 Ω resistor? (a) white-blue-brown (b) blue-white-brown (c) white-blue-black (d) white-blue-red
  40. 40.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?

Answer key

  1. 5
  2. 4
  3. 7
  4. 980
  5. 88
  6. 5 %
  7. 3
  8. 160
  9. orange-yellow-red
  10. the one nearest an end
  11. 51000
  12. orange-green-black
  13. 100
  14. 36
  15. 6
  16. 7.8
  17. 750
  18. white-red-red
  19. 7100
  20. 8100
  21. 8400
  22. violet-brown-orange
  23. yellow-green-red
  24. 7
  25. violet-yellow-brown
  26. 97
  27. 53
  28. 45
  29. 7.1
  30. orange-green-red
  31. 0
  32. 30000
  33. white-brown-orange
  34. 9
  35. 95
  36. 820
  37. 2.5
  38. 80
  39. white-blue-brown
  40. 77

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