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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 864 · 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 band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  2. 2.🌈 A resistor has the colour bands violet, white, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands red, red, orange. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 42 Ω resistor? (a) green-red-black (b) yellow-red-black (c) yellow-red-brown (d) red-yellow-black
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 63000 Ω resistor? (a) blue-orange-red (b) blue-orange-yellow (c) blue-orange-orange (d) orange-blue-orange
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 660 Ω resistor? (a) blue-blue-brown (b) blue-blue-red (c) blue-violet-brown (d) blue-blue-black
  8. 8.🌈 In the resistor colour code, which number does blue stand for?
  9. 9.🌈 A resistor has the colour bands red, grey, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 80000 Ω resistor? (a) white-grey-orange (b) grey-black-yellow (c) grey-black-red (d) grey-black-orange
  11. 11.🌈 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
  12. 12.🌈 A resistor has the colour bands red, green, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 In the resistor colour code, which number does green stand for?
  14. 14.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  15. 15.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 In the resistor colour code, which number does black stand for?
  17. 17.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands green, yellow, brown. What is its value (in ohms)?
  19. 19.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  20. 20.🌈 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
  21. 21.🌈 A resistor has the colour bands orange, grey, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) yellow-black-orange (c) yellow-black-red (d) green-yellow-orange
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 78 Ω resistor? (a) violet-grey-brown (b) grey-grey-black (c) grey-violet-black (d) violet-grey-black
  26. 26.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands white, green, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 350 Ω resistor? (a) green-orange-brown (b) orange-green-black (c) orange-green-red (d) orange-green-brown
  32. 32.🌈 A resistor has the colour bands red, red, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 13000 Ω resistor? (a) brown-orange-yellow (b) orange-brown-orange (c) brown-orange-orange (d) brown-orange-red
  34. 34.🌈 A resistor has the colour bands brown, yellow, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 91 Ω resistor? (a) white-brown-black (b) brown-white-black (c) brown-brown-black (d) white-brown-brown
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 440 Ω resistor? (a) yellow-yellow-red (b) yellow-green-brown (c) yellow-yellow-brown (d) yellow-yellow-black
  38. 38.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-brown (b) violet-blue-black (c) blue-black-black (d) violet-black-black
  40. 40.🌈 A resistor has the colour bands orange, white, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 79
  3. 22
  4. 470
  5. yellow-red-black
  6. blue-orange-orange
  7. blue-blue-brown
  8. 6
  9. 2.8
  10. grey-black-orange
  11. orange-violet-orange
  12. 25
  13. 5
  14. 5 %
  15. 90
  16. 0
  17. 13
  18. 540
  19. 3.1
  20. brown-green-brown
  21. 38
  22. 9
  23. 260
  24. yellow-black-orange
  25. violet-grey-black
  26. 86000
  27. 8
  28. 1800
  29. 3
  30. 950
  31. orange-green-brown
  32. 220
  33. brown-orange-orange
  34. 14000
  35. 7
  36. white-brown-black
  37. yellow-yellow-brown
  38. 46
  39. blue-black-black
  40. 39

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