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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 376 · 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 orange, red, black. What is its value (in ohms)?
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  3. 3.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  4. 4.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 26 Ω resistor? (a) red-blue-black (b) blue-red-black (c) red-blue-brown (d) orange-blue-black
  9. 9.🌈 In the resistor colour code, which number does red stand for?
  10. 10.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-red (c) blue-yellow-brown (d) yellow-blue-red
  12. 12.🌈 A resistor has the colour bands grey, blue, red. What is its value in kilo-ohms (kΩ)? =
  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 white, green, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3800 Ω resistor? (a) grey-orange-red (b) orange-grey-brown (c) orange-grey-orange (d) orange-grey-red
  16. 16.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-white-brown (b) white-white-black (c) white-black-black (d) brown-white-black
  19. 19.🌈 A resistor has the colour bands brown, white, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands white, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands green, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does violet stand for?
  25. 25.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does black stand for?
  27. 27.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57000 Ω resistor? (a) green-violet-yellow (b) green-violet-orange (c) green-violet-red (d) violet-green-orange
  30. 30.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 In the resistor colour code, which number does grey stand for?
  32. 32.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands blue, black, red. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does brown stand for?
  35. 35.🌈 A resistor has the colour bands yellow, grey, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4600 Ω resistor? (a) yellow-blue-orange (b) yellow-blue-brown (c) yellow-blue-red (d) blue-yellow-red
  40. 40.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 32
  2. the one nearest an end
  3. 5 %
  4. 6800
  5. 28
  6. 7.2
  7. 3
  8. red-blue-black
  9. 2
  10. 6.6
  11. blue-yellow-red
  12. 8.6
  13. 100
  14. 95000
  15. orange-grey-red
  16. 9.9
  17. 7.6
  18. white-white-black
  19. 1900
  20. 930
  21. 750
  22. 27
  23. 540
  24. 7
  25. 47
  26. 0
  27. 38
  28. 840
  29. green-violet-orange
  30. 37
  31. 8
  32. 38
  33. 6000
  34. 1
  35. 480
  36. 29
  37. 51000
  38. 7
  39. yellow-blue-red
  40. 1.8

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