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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 459 · 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 41 Ω resistor? (a) yellow-brown-black (b) yellow-brown-brown (c) green-brown-black (d) brown-yellow-black
  2. 2.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 66 Ω resistor? (a) blue-blue-black (b) blue-violet-black (c) violet-blue-black (d) blue-blue-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) red-orange-black (b) brown-orange-brown (c) brown-orange-black (d) orange-brown-black
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 68000 Ω resistor? (a) grey-blue-orange (b) blue-grey-orange (c) blue-grey-red (d) blue-grey-yellow
  7. 7.🌈 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
  8. 8.🌈 A resistor has the colour bands grey, black, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  10. 10.🌈 In the resistor colour code, which number does black stand for?
  11. 11.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 710 Ω resistor? (a) violet-brown-black (b) violet-brown-red (c) brown-violet-brown (d) violet-brown-brown
  13. 13.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, grey, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, blue, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7800 Ω resistor? (a) grey-violet-red (b) violet-grey-orange (c) violet-grey-red (d) violet-grey-brown
  19. 19.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  20. 20.🌈 In the resistor colour code, which number does grey stand for?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) green-brown-orange (b) brown-green-yellow (c) brown-green-orange (d) brown-green-red
  22. 22.🌈 A resistor has the colour bands white, grey, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands yellow, violet, red. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2700 Ω resistor? (a) violet-red-red (b) red-violet-orange (c) red-violet-red (d) red-violet-brown
  25. 25.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands grey, white, orange. What is its value (in ohms)?
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  31. 31.🌈 A resistor has the colour bands blue, white, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, grey, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands yellow, black, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 670 Ω resistor? (a) blue-violet-brown (b) blue-violet-black (c) violet-blue-brown (d) blue-violet-red
  37. 37.🌈 A resistor has the colour bands orange, brown, brown. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) yellow-orange-brown (c) orange-black-red (d) orange-black-brown
  40. 40.🌈 A resistor has the colour bands grey, blue, yellow. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. yellow-brown-black
  2. 54000
  3. blue-blue-black
  4. brown-orange-black
  5. 9
  6. blue-grey-orange
  7. the one nearest an end
  8. 8
  9. 40
  10. 0
  11. 86
  12. violet-brown-brown
  13. 12
  14. 28
  15. 46
  16. 480
  17. 56
  18. violet-grey-red
  19. 3600
  20. 8
  21. brown-green-orange
  22. 9800
  23. 4700
  24. red-violet-red
  25. 8700
  26. 350
  27. 89000
  28. 1
  29. 2.6
  30. 5 %
  31. 6.9
  32. 99
  33. 53
  34. 28
  35. 400
  36. blue-violet-brown
  37. 310
  38. 4.1
  39. orange-black-brown
  40. 860

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