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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 558 · 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 gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  2. 2.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) orange-blue-orange (b) blue-orange-red (c) blue-orange-orange (d) blue-orange-yellow
  6. 6.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does violet stand for?
  8. 8.🌈 A resistor has the colour bands green, violet, red. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-orange (b) red-green-brown (c) green-red-red (d) red-green-red
  10. 10.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, white, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) yellow-yellow-brown (b) green-yellow-black (c) yellow-yellow-black (d) yellow-green-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 940 Ω resistor? (a) yellow-white-brown (b) white-yellow-red (c) white-yellow-black (d) white-yellow-brown
  14. 14.🌈 A resistor has the colour bands blue, red, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-brown (b) blue-blue-red (c) blue-blue-black (d) blue-violet-brown
  16. 16.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  17. 17.🌈 A resistor has the colour bands brown, black, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9800 Ω resistor? (a) grey-white-red (b) white-grey-brown (c) white-grey-orange (d) white-grey-red
  19. 19.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-brown (b) yellow-green-red (c) green-yellow-orange (d) green-yellow-red
  24. 24.🌈 A resistor has the colour bands blue, grey, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) green-yellow-orange (b) yellow-black-red (c) yellow-black-orange (d) yellow-black-yellow
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands yellow, red, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 In the resistor colour code, which number does grey stand for?
  33. 33.🌈 In the resistor colour code, which number does green stand for?
  34. 34.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 In the resistor colour code, which number does orange stand for?
  36. 36.🌈 A resistor has the colour bands yellow, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands green, red, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 410 Ω resistor? (a) brown-yellow-brown (b) yellow-brown-brown (c) yellow-brown-black (d) yellow-brown-red
  40. 40.🌈 A resistor has the colour bands violet, white, red. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 72000
  3. 620
  4. 42000
  5. blue-orange-orange
  6. 27
  7. 7
  8. 5700
  9. red-green-red
  10. 71
  11. 69
  12. yellow-yellow-black
  13. white-yellow-brown
  14. 6200
  15. blue-blue-brown
  16. the one nearest an end
  17. 100
  18. white-grey-red
  19. 47
  20. 15
  21. 7
  22. 4.8
  23. green-yellow-red
  24. 68000
  25. yellow-black-orange
  26. 0
  27. 96
  28. 350
  29. 29
  30. 420
  31. 790
  32. 8
  33. 5
  34. 8
  35. 3
  36. 440
  37. 600
  38. 5.2
  39. yellow-brown-brown
  40. 7900

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