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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 545 · 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 920 Ω resistor? (a) white-red-red (b) white-red-brown (c) red-white-brown (d) white-red-black
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7000 Ω resistor? (a) violet-black-orange (b) grey-violet-red (c) violet-black-brown (d) violet-black-red
  4. 4.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 A resistor has the colour bands grey, red, red. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 In the resistor colour code, which number does violet stand for?
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-brown (b) yellow-red-red (c) red-yellow-red (d) yellow-red-orange
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-red-black (b) red-orange-black (c) red-red-brown (d) orange-red-black
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) grey-green-red (b) green-grey-orange (c) green-grey-brown (d) green-grey-red
  10. 10.🌈 A resistor has the colour bands white, orange, black. What is its value (in ohms)?
  11. 11.🌈 In the resistor colour code, which number does orange stand for?
  12. 12.🌈 A resistor has the colour bands brown, green, red. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does brown stand for?
  14. 14.🌈 In the resistor colour code, which number does red stand for?
  15. 15.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  16. 16.🌈 Which band is read first on a resistor? (a) any band (b) the gold band (c) the widest gap (d) the one nearest an end
  17. 17.🌈 A resistor has the colour bands white, blue, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) brown-white-black (b) white-brown-brown (c) white-brown-black (d) brown-brown-black
  20. 20.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands blue, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands violet, red, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands grey, white, black. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands green, brown, black. What is its value (in ohms)?
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6900 Ω resistor? (a) white-blue-red (b) blue-white-orange (c) blue-white-red (d) blue-white-brown
  28. 28.🌈 A resistor has the colour bands grey, black, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands white, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 17000 Ω resistor? (a) brown-violet-yellow (b) violet-brown-orange (c) brown-violet-red (d) brown-violet-orange
  31. 31.🌈 A resistor has the colour bands green, blue, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  33. 33.🌈 In the resistor colour code, which number does black stand for?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9400 Ω resistor? (a) white-yellow-brown (b) white-yellow-orange (c) white-yellow-red (d) yellow-white-red
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 420 Ω resistor? (a) yellow-red-brown (b) yellow-red-red (c) yellow-red-black (d) red-yellow-brown
  36. 36.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands yellow, violet, orange. What is its value (in ohms)?
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 460 Ω resistor? (a) yellow-blue-black (b) yellow-blue-brown (c) blue-yellow-brown (d) yellow-blue-red
  39. 39.🌈 In the resistor colour code, which number does grey stand for?
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 230 Ω resistor? (a) red-orange-brown (b) orange-red-brown (c) red-orange-red (d) red-orange-black

Answer key

  1. white-red-brown
  2. 5 %
  3. violet-black-red
  4. 87
  5. 8.2
  6. 7
  7. yellow-red-red
  8. red-red-black
  9. green-grey-red
  10. 93
  11. 3
  12. 1.5
  13. 1
  14. 2
  15. 54
  16. the one nearest an end
  17. 96
  18. 42000
  19. white-brown-black
  20. 9600
  21. 610
  22. 7.2
  23. 9.8
  24. 89
  25. 110
  26. 51
  27. blue-white-red
  28. 80
  29. 9.9
  30. brown-violet-orange
  31. 5.6
  32. 74000
  33. 0
  34. white-yellow-red
  35. yellow-red-brown
  36. 10
  37. 47000
  38. yellow-blue-brown
  39. 8
  40. red-orange-brown

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