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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 315 · 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 band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 A resistor has the colour bands violet, black, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does brown stand for?
  6. 6.🌈 A resistor has the colour bands orange, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  8. 8.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 In the resistor colour code, which number does green stand for?
  21. 21.🌈 In the resistor colour code, which number does red stand for?
  22. 22.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-red (b) grey-violet-red (c) violet-black-brown (d) violet-black-orange
  24. 24.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands green, grey, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, violet, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40 Ω resistor? (a) yellow-black-brown (b) green-black-black (c) green-yellow-black (d) yellow-black-black
  28. 28.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-red (b) red-white-red (c) white-red-orange (d) white-red-brown
  30. 30.🌈 A resistor has the colour bands violet, black, red. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 94 Ω resistor? (a) brown-yellow-black (b) white-yellow-brown (c) white-yellow-black (d) yellow-white-black
  32. 32.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 28000 Ω resistor? (a) red-grey-red (b) grey-red-orange (c) red-grey-orange (d) red-grey-yellow
  34. 34.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) blue-brown-red (b) brown-blue-brown (c) brown-blue-red (d) brown-blue-orange
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 47 Ω resistor? (a) green-violet-black (b) yellow-violet-brown (c) violet-yellow-black (d) yellow-violet-black
  37. 37.🌈 A resistor has the colour bands white, violet, black. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 930 Ω resistor? (a) white-orange-brown (b) white-orange-red (c) orange-white-brown (d) white-orange-black
  39. 39.🌈 In the resistor colour code, which number does yellow stand for?
  40. 40.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 8
  3. 700
  4. 32000
  5. 1
  6. 33
  7. 5 %
  8. 28
  9. 29
  10. 160
  11. 34
  12. 6
  13. 97
  14. 63000
  15. 39
  16. 330
  17. 77
  18. 2.6
  19. 89
  20. 5
  21. 2
  22. 96
  23. violet-black-red
  24. 3.2
  25. 58000
  26. 8.7
  27. yellow-black-black
  28. 4.8
  29. white-red-red
  30. 7000
  31. white-yellow-black
  32. 6.1
  33. red-grey-orange
  34. 27
  35. brown-blue-red
  36. yellow-violet-black
  37. 97
  38. white-orange-brown
  39. 4
  40. 910

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