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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 506 · 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 290 Ω resistor? (a) red-white-black (b) white-red-brown (c) red-white-red (d) red-white-brown
  2. 2.🌈 In the resistor colour code, which number does white stand for?
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  5. 5.🌈 A resistor has the colour bands violet, violet, red. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  7. 7.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does violet stand for?
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 370 Ω resistor? (a) orange-violet-red (b) violet-orange-brown (c) orange-violet-black (d) orange-violet-brown
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) white-blue-brown (b) blue-white-brown (c) blue-white-black (d) blue-white-red
  12. 12.🌈 A resistor has the colour bands green, green, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, grey, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, violet, brown. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands red, green, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands white, green, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 In the resistor colour code, which number does blue stand for?
  19. 19.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands white, grey, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 180 Ω resistor? (a) brown-grey-brown (b) grey-brown-brown (c) brown-grey-red (d) brown-grey-black
  24. 24.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 14000 Ω resistor? (a) yellow-brown-orange (b) brown-yellow-orange (c) brown-yellow-red (d) brown-yellow-yellow
  27. 27.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 In the resistor colour code, which number does green stand for?
  29. 29.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-red (b) green-yellow-brown (c) green-yellow-black (d) yellow-green-brown
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17 Ω resistor? (a) brown-violet-brown (b) red-violet-black (c) violet-brown-black (d) brown-violet-black
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-red (b) red-red-black (c) red-red-brown (d) red-orange-brown
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-orange (b) green-black-brown (c) green-black-red (d) blue-green-red
  35. 35.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69 Ω resistor? (a) blue-white-black (b) white-blue-black (c) blue-white-brown (d) violet-white-black
  37. 37.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands brown, black, brown. What is its value (in ohms)?

Answer key

  1. red-white-brown
  2. 9
  3. 1
  4. the one nearest an end
  5. 7700
  6. 5 %
  7. 67
  8. 7
  9. 8
  10. orange-violet-brown
  11. blue-white-brown
  12. 550
  13. 880
  14. 270
  15. 25
  16. 95
  17. 57
  18. 6
  19. 4.5
  20. 160
  21. 650
  22. 98
  23. brown-grey-brown
  24. 380
  25. 51
  26. brown-yellow-orange
  27. 42
  28. 5
  29. 41
  30. 510
  31. green-yellow-brown
  32. brown-violet-black
  33. red-red-brown
  34. green-black-red
  35. 84
  36. blue-white-black
  37. 46
  38. 30
  39. 70
  40. 100

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