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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 573 · 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) 0 % (b) 5 % (c) 50 % (d) 25 %
  2. 2.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) red-green-orange (b) green-red-red (c) red-green-brown (d) red-green-red
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) red-brown-brown (b) brown-red-red (c) brown-red-black (d) brown-red-brown
  5. 5.🌈 A resistor has the colour bands yellow, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 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
  7. 7.🌈 In the resistor colour code, which number does white stand for?
  8. 8.🌈 A resistor has the colour bands brown, blue, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, orange, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands violet, blue, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands green, white, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, grey, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does grey stand for?
  20. 20.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 44 Ω resistor? (a) green-yellow-black (b) yellow-yellow-black (c) yellow-green-black (d) yellow-yellow-brown
  22. 22.🌈 A resistor has the colour bands blue, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 In the resistor colour code, which number does black stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-red (b) green-brown-orange (c) brown-green-yellow (d) brown-green-orange
  25. 25.🌈 A resistor has the colour bands grey, brown, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands white, orange, red. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2200 Ω resistor? (a) red-red-brown (b) red-red-red (c) red-red-orange (d) red-orange-red
  28. 28.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does orange stand for?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-orange (b) white-red-brown (c) red-white-red (d) white-red-red
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1700 Ω resistor? (a) brown-violet-orange (b) brown-violet-red (c) violet-brown-red (d) brown-violet-brown
  32. 32.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands orange, blue, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) blue-yellow-yellow (b) yellow-blue-orange (c) blue-yellow-red (d) blue-yellow-orange
  35. 35.🌈 A resistor has the colour bands violet, red, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 250 Ω resistor? (a) red-green-brown (b) red-green-red (c) green-red-brown (d) red-green-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 70 Ω resistor? (a) violet-black-black (b) grey-black-black (c) violet-black-brown (d) grey-violet-black
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 260 Ω resistor? (a) red-blue-black (b) red-blue-red (c) blue-red-brown (d) red-blue-brown
  39. 39.🌈 In the resistor colour code, which number does brown stand for?
  40. 40.🌈 In the resistor colour code, which number does red stand for?

Answer key

  1. 5 %
  2. 66000
  3. red-green-red
  4. brown-red-brown
  5. 44
  6. the one nearest an end
  7. 9
  8. 16
  9. 43
  10. 84
  11. 76
  12. 59
  13. 700
  14. 5
  15. 820
  16. 130
  17. 38000
  18. 89000
  19. 8
  20. 170
  21. yellow-yellow-black
  22. 680
  23. 0
  24. brown-green-orange
  25. 810
  26. 9300
  27. red-red-red
  28. 13
  29. 3
  30. white-red-red
  31. brown-violet-red
  32. 130
  33. 36
  34. blue-yellow-orange
  35. 72
  36. red-green-brown
  37. violet-black-black
  38. red-blue-brown
  39. 1
  40. 2

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