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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 963 · 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.

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  1. 1.🌈 A resistor has the colour bands blue, grey, black. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36 Ω resistor? (a) yellow-blue-black (b) orange-blue-brown (c) orange-blue-black (d) blue-orange-black
  3. 3.🌈 In the resistor colour code, which number does grey stand for?
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) yellow-violet-red (b) violet-yellow-orange (c) violet-yellow-red (d) violet-yellow-brown
  5. 5.🌈 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
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5800 Ω resistor? (a) green-grey-brown (b) green-grey-orange (c) green-grey-red (d) grey-green-red
  7. 7.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 In the resistor colour code, which number does green stand for?
  9. 9.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) orange-blue-brown (b) blue-orange-red (c) orange-blue-red (d) orange-blue-orange
  11. 11.🌈 A resistor has the colour bands white, blue, red. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 In the resistor colour code, which number does red stand for?
  13. 13.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands violet, orange, orange. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  16. 16.🌈 A resistor has the colour bands yellow, blue, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) violet-green-black (b) violet-green-brown (c) green-violet-black (d) grey-green-black
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19 Ω resistor? (a) brown-white-black (b) white-brown-black (c) red-white-black (d) brown-white-brown
  20. 20.🌈 A resistor has the colour bands violet, white, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 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
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-yellow (b) brown-white-red (c) white-brown-orange (d) brown-white-orange
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-orange (b) red-orange-brown (c) orange-red-red (d) red-orange-red
  24. 24.🌈 A resistor has the colour bands yellow, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 In the resistor colour code, which number does yellow stand for?
  26. 26.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) grey-green-brown (b) green-grey-brown (c) green-grey-black (d) green-grey-red
  29. 29.🌈 In the resistor colour code, which number does violet stand for?
  30. 30.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, green, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) blue-green-orange (b) green-blue-red (c) green-blue-yellow (d) green-blue-orange
  33. 33.🌈 A resistor has the colour bands orange, red, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands white, white, black. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands orange, blue, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 In the resistor colour code, which number does brown stand for?
  37. 37.🌈 A resistor has the colour bands green, yellow, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands grey, red, yellow. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59 Ω resistor? (a) green-white-brown (b) blue-white-black (c) white-green-black (d) green-white-black

Answer key

  1. 68
  2. orange-blue-black
  3. 8
  4. violet-yellow-red
  5. the one nearest an end
  6. green-grey-red
  7. 110
  8. 5
  9. 5 %
  10. orange-blue-red
  11. 9.6
  12. 2
  13. 87
  14. 73
  15. 29
  16. 46
  17. 300
  18. violet-green-black
  19. brown-white-black
  20. 790
  21. red-white-orange
  22. brown-white-orange
  23. red-orange-red
  24. 410
  25. 4
  26. 84
  27. 720
  28. green-grey-brown
  29. 7
  30. 3.1
  31. 4.5
  32. green-blue-orange
  33. 32000
  34. 99
  35. 36
  36. 1
  37. 54
  38. 820
  39. 41
  40. green-white-black

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