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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 721 · 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 widest gap (b) any band (c) the one nearest an end (d) the gold band
  2. 2.🌈 In the resistor colour code, which number does white stand for?
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  4. 4.🌈 A resistor has the colour bands green, red, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands white, white, brown. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands green, blue, black. What is its value (in ohms)?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 770 Ω resistor? (a) violet-grey-brown (b) violet-violet-black (c) violet-violet-brown (d) violet-violet-red
  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 34000 Ω resistor? (a) yellow-orange-orange (b) orange-yellow-orange (c) orange-yellow-yellow (d) orange-yellow-red
  10. 10.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) violet-blue-orange (b) blue-violet-orange (c) blue-violet-yellow (d) blue-violet-red
  15. 15.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does green stand for?
  17. 17.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-red (b) brown-red-brown (c) brown-brown-black (d) brown-brown-brown
  19. 19.🌈 A resistor has the colour bands blue, black, brown. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does yellow stand for?
  21. 21.🌈 In the resistor colour code, which number does violet stand for?
  22. 22.🌈 In the resistor colour code, which number does black stand for?
  23. 23.🌈 A resistor has the colour bands red, blue, black. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 35 Ω resistor? (a) orange-green-brown (b) green-orange-black (c) yellow-green-black (d) orange-green-black
  25. 25.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-red (b) blue-violet-orange (c) violet-blue-yellow (d) violet-blue-orange
  27. 27.🌈 In the resistor colour code, which number does blue stand for?
  28. 28.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands orange, yellow, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94000 Ω resistor? (a) white-yellow-yellow (b) white-yellow-orange (c) white-yellow-red (d) yellow-white-orange
  35. 35.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 10000 Ω resistor? (a) red-brown-orange (b) brown-black-red (c) brown-black-orange (d) brown-black-yellow
  37. 37.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3000 Ω resistor? (a) orange-black-red (b) yellow-orange-red (c) orange-black-brown (d) orange-black-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) yellow-white-black (b) orange-white-brown (c) white-orange-black (d) orange-white-black
  40. 40.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 9
  3. 5 %
  4. 520
  5. 990
  6. 56
  7. violet-violet-brown
  8. 1
  9. orange-yellow-orange
  10. 7200
  11. 89
  12. 610
  13. 2100
  14. blue-violet-orange
  15. 8.3
  16. 5
  17. 22
  18. brown-brown-brown
  19. 600
  20. 4
  21. 7
  22. 0
  23. 26
  24. orange-green-black
  25. 9
  26. violet-blue-orange
  27. 6
  28. 27
  29. 44000
  30. 3.4
  31. 8.9
  32. 55
  33. 800
  34. white-yellow-orange
  35. 96
  36. brown-black-orange
  37. 200
  38. orange-black-red
  39. orange-white-black
  40. 390

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