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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 332 · 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 yellow stand for?
  2. 2.🌈 In the resistor colour code, which number does black stand for?
  3. 3.🌈 Which band is read first on a resistor? (a) any band (b) the widest gap (c) the gold band (d) the one nearest an end
  4. 4.🌈 A resistor has the colour bands brown, blue, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands white, brown, orange. What is its value (in ohms)?
  6. 6.🌈 A resistor has the colour bands violet, violet, red. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, orange, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands violet, blue, red. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, black, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6500 Ω resistor? (a) blue-green-red (b) green-blue-red (c) blue-green-brown (d) blue-green-orange
  12. 12.🌈 A resistor has the colour bands orange, red, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) red-brown-black (b) brown-red-black (c) red-red-black (d) brown-red-brown
  14. 14.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, red, red. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  18. 18.🌈 In the resistor colour code, which number does blue stand for?
  19. 19.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does grey stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-red (b) grey-red-orange (c) red-grey-orange (d) grey-red-yellow
  22. 22.🌈 In the resistor colour code, which number does brown stand for?
  23. 23.🌈 A resistor has the colour bands orange, white, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) white-brown-orange (b) brown-white-red (c) brown-white-yellow (d) brown-white-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 54 Ω resistor? (a) blue-yellow-black (b) yellow-green-black (c) green-yellow-brown (d) green-yellow-black
  26. 26.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12000 Ω resistor? (a) red-brown-orange (b) brown-red-red (c) brown-red-yellow (d) brown-red-orange
  28. 28.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands green, brown, orange. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands grey, grey, orange. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands red, brown, brown. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does white stand for?
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 48 Ω resistor? (a) yellow-grey-black (b) grey-yellow-black (c) yellow-grey-brown (d) green-grey-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) yellow-blue-black (b) blue-yellow-black (c) violet-yellow-black (d) blue-yellow-brown
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) red-blue-black (b) violet-red-black (c) blue-red-black (d) blue-red-brown
  39. 39.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, grey, orange. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 4
  2. 0
  3. the one nearest an end
  4. 1.6
  5. 91000
  6. 7.7
  7. 4.3
  8. 3.1
  9. 7600
  10. 9
  11. blue-green-red
  12. 320
  13. brown-red-black
  14. 2100
  15. 6.2
  16. 84
  17. 5 %
  18. 6
  19. 86
  20. 8
  21. grey-red-orange
  22. 1
  23. 390
  24. brown-white-orange
  25. green-yellow-black
  26. 67000
  27. brown-red-orange
  28. 62
  29. 51000
  30. 7500
  31. 88000
  32. 210
  33. 9
  34. 7
  35. 130
  36. yellow-grey-black
  37. blue-yellow-black
  38. blue-red-black
  39. 9.9
  40. 58

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