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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 177 · 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 violet stand for?
  2. 2.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 A resistor has the colour bands blue, brown, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) any band (d) the one nearest an end
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 A resistor has the colour bands grey, red, orange. What is its value (in ohms)?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39000 Ω resistor? (a) orange-white-orange (b) orange-white-yellow (c) white-orange-orange (d) orange-white-red
  9. 9.🌈 A resistor has the colour bands violet, black, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-orange (b) white-blue-orange (c) blue-white-yellow (d) blue-white-red
  12. 12.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 50 % (c) 25 % (d) 5 %
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) red-orange-black (b) orange-red-black (c) yellow-red-black (d) orange-red-brown
  14. 14.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands grey, grey, red. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does blue stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5300 Ω resistor? (a) green-orange-brown (b) green-orange-orange (c) green-orange-red (d) orange-green-red
  18. 18.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, yellow, brown. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands blue, black, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-red (b) orange-blue-orange (c) blue-orange-red (d) orange-blue-brown
  26. 26.🌈 A resistor has the colour bands brown, brown, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74000 Ω resistor? (a) yellow-violet-orange (b) violet-yellow-yellow (c) violet-yellow-orange (d) violet-yellow-red
  28. 28.🌈 In the resistor colour code, which number does black stand for?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 93 Ω resistor? (a) brown-orange-black (b) orange-white-black (c) white-orange-black (d) white-orange-brown
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) white-black-black (b) white-black-brown (c) brown-white-brown (d) white-black-red
  31. 31.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 57 Ω resistor? (a) blue-violet-black (b) violet-green-black (c) green-violet-brown (d) green-violet-black
  33. 33.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) orange-red-black (b) red-red-black (c) red-orange-black (d) red-red-brown
  35. 35.🌈 A resistor has the colour bands blue, grey, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, blue, orange. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 In the resistor colour code, which number does green stand for?
  39. 39.🌈 A resistor has the colour bands violet, green, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands blue, yellow, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 7
  2. 7.7
  3. 61
  4. the one nearest an end
  5. 1
  6. 8
  7. 82000
  8. orange-white-orange
  9. 7
  10. 45
  11. blue-white-orange
  12. 5 %
  13. orange-red-black
  14. 220
  15. 8800
  16. 6
  17. green-orange-red
  18. 500
  19. 15000
  20. 140
  21. 960
  22. 60
  23. 800
  24. 86
  25. orange-blue-red
  26. 11000
  27. violet-yellow-orange
  28. 0
  29. white-orange-black
  30. white-black-brown
  31. 22
  32. green-violet-black
  33. 720
  34. red-red-black
  35. 680
  36. 26000
  37. 710
  38. 5
  39. 7.5
  40. 64

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