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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 117 · 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 yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 0 % (d) 5 %
  3. 3.🌈 In the resistor colour code, which number does violet stand for?
  4. 4.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-brown (b) grey-blue-black (c) violet-grey-black (d) blue-grey-black
  6. 6.🌈 Which band is read first on a resistor? (a) the gold band (b) the one nearest an end (c) any band (d) the widest gap
  7. 7.🌈 In the resistor colour code, which number does orange stand for?
  8. 8.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-red (b) brown-red-black (c) red-brown-brown (d) brown-red-brown
  10. 10.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands red, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands red, violet, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands orange, violet, brown. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does blue stand for?
  18. 18.🌈 A resistor has the colour bands brown, violet, red. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, violet, orange. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, green, red. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does red stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-brown-orange (c) brown-brown-yellow (d) brown-red-orange
  25. 25.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does white stand for?
  30. 30.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, red, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, white, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands blue, grey, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-red (b) red-orange-orange (c) orange-red-yellow (d) orange-red-orange
  35. 35.🌈 A resistor has the colour bands green, blue, orange. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  37. 37.🌈 In the resistor colour code, which number does brown stand for?
  38. 38.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?

Answer key

  1. 4.8
  2. 5 %
  3. 7
  4. 89
  5. blue-grey-black
  6. the one nearest an end
  7. 3
  8. 7.8
  9. brown-red-brown
  10. 570
  11. 650
  12. 24
  13. 27
  14. 560
  15. 30
  16. 370
  17. 6
  18. 1700
  19. 5
  20. 86
  21. 97000
  22. 4500
  23. 2
  24. brown-brown-orange
  25. 1.9
  26. 4
  27. 67
  28. 170
  29. 9
  30. 670
  31. 42
  32. 59000
  33. 6.8
  34. orange-red-orange
  35. 56000
  36. 95
  37. 1
  38. 85
  39. 5600
  40. 58000

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