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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 644 · 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 14000 Ω resistor? (a) brown-yellow-red (b) yellow-brown-orange (c) brown-yellow-orange (d) brown-yellow-yellow
  2. 2.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) any band (d) the gold band
  3. 3.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  4. 4.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does green stand for?
  7. 7.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands white, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands violet, black, orange. What is its value (in ohms)?
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 50 % (c) 25 % (d) 0 %
  11. 11.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) red-red-black (d) brown-red-black
  14. 14.🌈 A resistor has the colour bands green, yellow, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, white, red. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 30000 Ω resistor? (a) yellow-orange-orange (b) orange-black-orange (c) orange-black-red (d) orange-black-yellow
  17. 17.🌈 A resistor has the colour bands violet, red, red. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) green-black-brown (b) green-black-black (c) blue-green-black (d) blue-black-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) white-yellow-black (b) yellow-grey-black (c) grey-yellow-brown (d) grey-yellow-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 160 Ω resistor? (a) brown-blue-black (b) brown-blue-brown (c) brown-blue-red (d) blue-brown-brown
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1800 Ω resistor? (a) brown-grey-orange (b) brown-grey-brown (c) brown-grey-red (d) grey-brown-red
  22. 22.🌈 In the resistor colour code, which number does grey stand for?
  23. 23.🌈 In the resistor colour code, which number does blue stand for?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 85000 Ω resistor? (a) grey-green-yellow (b) grey-green-orange (c) grey-green-red (d) green-grey-orange
  25. 25.🌈 A resistor has the colour bands orange, brown, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does orange stand for?
  28. 28.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 In the resistor colour code, which number does white stand for?
  30. 30.🌈 In the resistor colour code, which number does red stand for?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) yellow-green-brown (b) green-yellow-red (c) yellow-green-orange (d) yellow-green-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-red (b) white-yellow-orange (c) white-yellow-brown (d) yellow-white-red
  33. 33.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands orange, red, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, orange, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands blue, red, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands brown, orange, brown. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 540 Ω resistor? (a) green-yellow-black (b) green-yellow-red (c) green-yellow-brown (d) yellow-green-brown

Answer key

  1. brown-yellow-orange
  2. the one nearest an end
  3. 77000
  4. 38
  5. 27000
  6. 5
  7. 14000
  8. 980
  9. 70000
  10. 5 %
  11. 81
  12. 60000
  13. brown-red-black
  14. 5.4
  15. 2900
  16. orange-black-orange
  17. 7200
  18. green-black-black
  19. grey-yellow-black
  20. brown-blue-brown
  21. brown-grey-red
  22. 8
  23. 6
  24. grey-green-orange
  25. 31000
  26. 66000
  27. 3
  28. 660
  29. 9
  30. 2
  31. yellow-green-red
  32. white-yellow-red
  33. 9.7
  34. 4
  35. 780
  36. 320
  37. 43000
  38. 62
  39. 130
  40. green-yellow-brown

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