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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 355 · 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.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78000 Ω resistor? (a) violet-grey-red (b) violet-grey-orange (c) grey-violet-orange (d) violet-grey-yellow
  3. 3.🌈 A resistor has the colour bands brown, green, orange. What is its value (in ohms)?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2500 Ω resistor? (a) green-red-red (b) red-green-orange (c) red-green-brown (d) red-green-red
  5. 5.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does yellow stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 49 Ω resistor? (a) yellow-white-brown (b) green-white-black (c) yellow-white-black (d) white-yellow-black
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 970 Ω resistor? (a) white-violet-brown (b) white-violet-red (c) violet-white-brown (d) white-violet-black
  9. 9.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) grey-orange-brown (b) grey-orange-black (c) white-orange-black (d) orange-grey-black
  11. 11.🌈 A resistor has the colour bands green, orange, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 570 Ω resistor? (a) green-violet-black (b) green-violet-red (c) green-violet-brown (d) violet-green-brown
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 69000 Ω resistor? (a) blue-white-yellow (b) white-blue-orange (c) blue-white-orange (d) blue-white-red
  16. 16.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) any band (d) the one nearest an end
  17. 17.🌈 A resistor has the colour bands white, violet, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) yellow-orange-brown (c) orange-black-brown (d) orange-black-red
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 A resistor has the colour bands red, yellow, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does orange stand for?
  22. 22.🌈 A resistor has the colour bands orange, red, black. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, violet, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands yellow, violet, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 21000 Ω resistor? (a) red-brown-red (b) brown-red-orange (c) red-brown-orange (d) red-brown-yellow
  27. 27.🌈 A resistor has the colour bands blue, violet, orange. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-red (b) blue-violet-brown (c) blue-blue-black (d) blue-blue-brown
  29. 29.🌈 In the resistor colour code, which number does green stand for?
  30. 30.🌈 A resistor has the colour bands brown, red, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands yellow, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands red, black, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, white, brown. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 50 Ω resistor? (a) blue-green-black (b) green-black-brown (c) blue-black-black (d) green-black-black
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 96 Ω resistor? (a) blue-white-black (b) white-blue-brown (c) white-blue-black (d) brown-blue-black
  38. 38.🌈 In the resistor colour code, which number does blue stand for?
  39. 39.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-yellow (b) orange-blue-orange (c) blue-orange-orange (d) blue-orange-red

Answer key

  1. 5 %
  2. violet-grey-orange
  3. 15000
  4. red-green-red
  5. 4.5
  6. 4
  7. yellow-white-black
  8. white-violet-brown
  9. 840
  10. grey-orange-black
  11. 5.3
  12. 8
  13. 10
  14. green-violet-brown
  15. blue-white-orange
  16. the one nearest an end
  17. 97
  18. orange-black-brown
  19. 0
  20. 24000
  21. 3
  22. 32
  23. 770
  24. 47
  25. 19
  26. red-brown-orange
  27. 67000
  28. blue-blue-brown
  29. 5
  30. 1200
  31. 10
  32. 460
  33. 20
  34. 190
  35. 470
  36. green-black-black
  37. white-blue-black
  38. 6
  39. 23
  40. blue-orange-orange

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