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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 416 · 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) 0 % (b) 50 % (c) 5 % (d) 25 %
  2. 2.🌈 Which band is read first on a resistor? (a) the gold band (b) the widest gap (c) the one nearest an end (d) any band
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9000 Ω resistor? (a) white-black-red (b) brown-white-red (c) white-black-orange (d) white-black-brown
  4. 4.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  5. 5.🌈 In the resistor colour code, which number does grey stand for?
  6. 6.🌈 A resistor has the colour bands orange, white, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5600 Ω resistor? (a) blue-green-red (b) green-blue-brown (c) green-blue-orange (d) green-blue-red
  9. 9.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  10. 10.🌈 A resistor has the colour bands white, brown, black. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) red-green-black (b) green-red-brown (c) green-red-black (d) blue-red-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84000 Ω resistor? (a) grey-yellow-red (b) grey-yellow-orange (c) grey-yellow-yellow (d) yellow-grey-orange
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7900 Ω resistor? (a) violet-white-red (b) white-violet-red (c) violet-white-orange (d) violet-white-brown
  15. 15.🌈 In the resistor colour code, which number does black stand for?
  16. 16.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does green stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) violet-grey-black (b) grey-grey-black (c) grey-violet-black (d) violet-grey-brown
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) green-brown-brown (b) brown-green-red (c) brown-green-black (d) brown-green-brown
  24. 24.🌈 In the resistor colour code, which number does orange stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) red-orange-yellow (b) red-orange-red (c) red-orange-orange (d) orange-red-orange
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) red-white-black (b) brown-white-black (c) brown-white-brown (d) white-brown-black
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 200 Ω resistor? (a) orange-red-brown (b) red-black-brown (c) red-black-red (d) red-black-black
  28. 28.🌈 In the resistor colour code, which number does red stand for?
  29. 29.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, yellow, black. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-orange (b) white-yellow-red (c) yellow-white-brown (d) yellow-white-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-brown (b) brown-yellow-black (c) yellow-brown-brown (d) brown-yellow-red
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) blue-green-brown (b) green-black-brown (c) green-black-black (d) green-black-red
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68 Ω resistor? (a) blue-grey-brown (b) blue-grey-black (c) grey-blue-black (d) violet-grey-black
  35. 35.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, black, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands orange, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) white-red-orange (b) red-white-yellow (c) red-white-red (d) red-white-orange
  40. 40.🌈 A resistor has the colour bands blue, yellow, red. What is its value (in ohms)?

Answer key

  1. 5 %
  2. the one nearest an end
  3. white-black-red
  4. 27000
  5. 8
  6. 39
  7. 1
  8. green-blue-red
  9. 13
  10. 91
  11. 29
  12. green-red-black
  13. grey-yellow-orange
  14. violet-white-red
  15. 0
  16. 29
  17. 25000
  18. 6.9
  19. 41
  20. 10
  21. 5
  22. violet-grey-black
  23. brown-green-brown
  24. 3
  25. red-orange-orange
  26. brown-white-black
  27. red-black-brown
  28. 2
  29. 3.7
  30. 44
  31. yellow-white-red
  32. brown-yellow-brown
  33. green-black-brown
  34. blue-grey-black
  35. 95
  36. 500
  37. 380
  38. 770
  39. red-white-orange
  40. 6400

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