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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 272 · 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.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-red (c) green-grey-black (d) green-grey-brown
  2. 2.🌈 A resistor has the colour bands green, black, red. What is its value (in ohms)?
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  4. 4.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 73000 Ω resistor? (a) violet-orange-orange (b) violet-orange-yellow (c) violet-orange-red (d) orange-violet-orange
  6. 6.🌈 In the resistor colour code, which number does black stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2400 Ω resistor? (a) yellow-red-red (b) red-yellow-red (c) red-yellow-brown (d) red-yellow-orange
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21 Ω resistor? (a) brown-red-black (b) red-brown-black (c) orange-brown-black (d) red-brown-brown
  12. 12.🌈 In the resistor colour code, which number does violet stand for?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) orange-green-black (b) orange-green-brown (c) orange-green-red (d) green-orange-brown
  14. 14.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49000 Ω resistor? (a) yellow-white-red (b) yellow-white-yellow (c) white-yellow-orange (d) yellow-white-orange
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 24000 Ω resistor? (a) red-yellow-orange (b) yellow-red-orange (c) red-yellow-yellow (d) red-yellow-red
  19. 19.🌈 In the resistor colour code, which number does orange stand for?
  20. 20.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, black, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands yellow, grey, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) grey-black-yellow (b) grey-black-red (c) grey-black-orange (d) white-grey-orange
  24. 24.🌈 In the resistor colour code, which number does red stand for?
  25. 25.🌈 In the resistor colour code, which number does brown stand for?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) blue-white-brown (b) blue-white-black (c) violet-white-black (d) white-blue-black
  27. 27.🌈 A resistor has the colour bands brown, violet, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands yellow, white, brown. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, brown, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands red, yellow, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-black (b) green-black-black (c) yellow-black-brown (d) green-yellow-black
  36. 36.🌈 A resistor has the colour bands grey, orange, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 880 Ω resistor? (a) grey-grey-brown (b) grey-white-brown (c) grey-grey-black (d) grey-grey-red
  38. 38.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  39. 39.🌈 In the resistor colour code, which number does green stand for?
  40. 40.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. green-grey-brown
  2. 5000
  3. the one nearest an end
  4. 660
  5. violet-orange-orange
  6. 0
  7. red-yellow-red
  8. 6
  9. 38
  10. 5 %
  11. red-brown-black
  12. 7
  13. orange-green-brown
  14. 25
  15. 29
  16. 880
  17. yellow-white-orange
  18. red-yellow-orange
  19. 3
  20. 6.9
  21. 1000
  22. 48
  23. grey-black-orange
  24. 2
  25. 1
  26. blue-white-black
  27. 17
  28. 490
  29. 93
  30. 61
  31. 81
  32. 87000
  33. 240
  34. 2.4
  35. yellow-black-black
  36. 83
  37. grey-grey-brown
  38. 67000
  39. 5
  40. 320

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