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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 352 · 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 grey, green, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the one nearest an end (c) any band (d) the gold band
  4. 4.🌈 In the resistor colour code, which number does violet stand for?
  5. 5.🌈 A resistor has the colour bands brown, yellow, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does blue stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) yellow-green-brown (b) green-yellow-black (c) green-yellow-red (d) green-yellow-brown
  8. 8.🌈 In the resistor colour code, which number does red stand for?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-black (b) blue-black-brown (c) violet-blue-black (d) violet-black-black
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-red (b) yellow-red-orange (c) red-yellow-orange (d) red-yellow-yellow
  11. 11.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  12. 12.🌈 A resistor has the colour bands violet, grey, orange. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does yellow stand for?
  15. 15.🌈 In the resistor colour code, which number does orange stand for?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-orange (b) blue-yellow-brown (c) blue-yellow-red (d) yellow-blue-red
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-brown (b) green-black-red (c) blue-green-red (d) green-black-orange
  18. 18.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands yellow, green, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47000 Ω resistor? (a) yellow-violet-orange (b) yellow-violet-red (c) yellow-violet-yellow (d) violet-yellow-orange
  26. 26.🌈 A resistor has the colour bands blue, blue, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands brown, white, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-orange (b) yellow-orange-red (c) yellow-orange-yellow (d) orange-yellow-orange
  29. 29.🌈 A resistor has the colour bands green, blue, red. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, red, orange. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7100 Ω resistor? (a) violet-brown-red (b) violet-brown-orange (c) violet-brown-brown (d) brown-violet-red
  32. 32.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does black stand for?
  36. 36.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands brown, violet, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9500 Ω resistor? (a) white-green-red (b) white-green-brown (c) white-green-orange (d) green-white-red
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15 Ω resistor? (a) red-green-black (b) green-brown-black (c) brown-green-brown (d) brown-green-black

Answer key

  1. 8.5
  2. 57000
  3. the one nearest an end
  4. 7
  5. 1.4
  6. 6
  7. green-yellow-brown
  8. 2
  9. blue-black-black
  10. red-yellow-orange
  11. 5 %
  12. 78000
  13. 600
  14. 4
  15. 3
  16. blue-yellow-red
  17. green-black-red
  18. 60
  19. 1200
  20. 130
  21. 900
  22. 46
  23. 450
  24. 9.2
  25. yellow-violet-orange
  26. 66
  27. 19
  28. yellow-orange-orange
  29. 5600
  30. 72000
  31. violet-brown-red
  32. 560
  33. 910
  34. 9900
  35. 0
  36. 87
  37. 17000
  38. white-green-red
  39. 1
  40. brown-green-black

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