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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 863 · 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 380 Ω resistor? (a) orange-grey-red (b) orange-grey-brown (c) grey-orange-brown (d) orange-grey-black
  2. 2.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A gold fourth band on a resistor means the value may be off by … (a) 5 % (b) 25 % (c) 50 % (d) 0 %
  5. 5.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the one nearest an end (d) the widest gap
  6. 6.🌈 A resistor has the colour bands green, orange, orange. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-orange (b) violet-orange-orange (c) orange-violet-yellow (d) orange-violet-red
  8. 8.🌈 A resistor has the colour bands yellow, black, orange. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands red, black, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands blue, green, brown. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands green, violet, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands red, yellow, black. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  16. 16.🌈 In the resistor colour code, which number does red stand for?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4500 Ω resistor? (a) green-yellow-red (b) yellow-green-orange (c) yellow-green-brown (d) yellow-green-red
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6400 Ω resistor? (a) blue-yellow-brown (b) yellow-blue-red (c) blue-yellow-orange (d) blue-yellow-red
  19. 19.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1900 Ω resistor? (a) brown-white-brown (b) brown-white-orange (c) brown-white-red (d) white-brown-red
  21. 21.🌈 A resistor has the colour bands brown, green, red. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands grey, brown, red. What is its value (in ohms)?
  23. 23.🌈 In the resistor colour code, which number does green stand for?
  24. 24.🌈 A resistor has the colour bands grey, white, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 A resistor has the colour bands blue, green, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7700 Ω resistor? (a) violet-grey-red (b) violet-violet-orange (c) violet-violet-red (d) violet-violet-brown
  30. 30.🌈 A resistor has the colour bands blue, blue, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-orange (b) blue-orange-red (c) orange-blue-brown (d) orange-blue-red
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13 Ω resistor? (a) brown-orange-brown (b) red-orange-black (c) brown-orange-black (d) orange-brown-black
  33. 33.🌈 In the resistor colour code, which number does brown stand for?
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64000 Ω resistor? (a) yellow-blue-orange (b) blue-yellow-yellow (c) blue-yellow-orange (d) blue-yellow-red
  38. 38.🌈 A resistor has the colour bands white, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, green, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, white, brown. What is its value (in ohms)?

Answer key

  1. orange-grey-brown
  2. 540
  3. 9.6
  4. 5 %
  5. the one nearest an end
  6. 53
  7. orange-violet-orange
  8. 40000
  9. 950
  10. 2
  11. 650
  12. 84
  13. 57
  14. 24
  15. 820
  16. 2
  17. yellow-green-red
  18. blue-yellow-red
  19. 39
  20. brown-white-red
  21. 1500
  22. 8100
  23. 5
  24. 8900
  25. 80
  26. 6
  27. 650
  28. 81
  29. violet-violet-red
  30. 6.6
  31. orange-blue-red
  32. brown-orange-black
  33. 1
  34. 9
  35. 7
  36. 62
  37. blue-yellow-orange
  38. 960
  39. 45
  40. 890

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