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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 289 · 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 brown, white, red. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5400 Ω resistor? (a) green-yellow-brown (b) yellow-green-red (c) green-yellow-orange (d) green-yellow-red
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 74 Ω resistor? (a) grey-yellow-black (b) yellow-violet-black (c) violet-yellow-black (d) violet-yellow-brown
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 61 Ω resistor? (a) brown-blue-black (b) blue-brown-black (c) blue-brown-brown (d) violet-brown-black
  5. 5.🌈 In the resistor colour code, which number does black stand for?
  6. 6.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the gold band (d) the widest gap
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 110 Ω resistor? (a) brown-brown-black (b) brown-brown-red (c) brown-red-brown (d) brown-brown-brown
  8. 8.🌈 In the resistor colour code, which number does brown stand for?
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 A resistor has the colour bands green, orange, orange. What is its value (in ohms)?
  11. 11.🌈 A resistor has the colour bands orange, blue, brown. What is its value (in ohms)?
  12. 12.🌈 In the resistor colour code, which number does blue stand for?
  13. 13.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands red, white, black. What is its value (in ohms)?
  15. 15.🌈 In the resistor colour code, which number does violet stand for?
  16. 16.🌈 A resistor has the colour bands red, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands green, yellow, orange. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands red, green, orange. What is its value (in ohms)?
  19. 19.🌈 In the resistor colour code, which number does red stand for?
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 120 Ω resistor? (a) brown-red-brown (b) red-brown-brown (c) brown-red-red (d) brown-red-black
  21. 21.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 0 % (c) 50 % (d) 5 %
  23. 23.🌈 A resistor has the colour bands red, blue, orange. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands yellow, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands violet, violet, orange. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands grey, white, red. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands white, yellow, black. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 45000 Ω resistor? (a) yellow-green-yellow (b) green-yellow-orange (c) yellow-green-red (d) yellow-green-orange
  30. 30.🌈 In the resistor colour code, which number does green stand for?
  31. 31.🌈 A resistor has the colour bands blue, red, black. What is its value (in ohms)?
  32. 32.🌈 A resistor has the colour bands green, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands yellow, violet, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67000 Ω resistor? (a) violet-blue-orange (b) blue-violet-yellow (c) blue-violet-orange (d) blue-violet-red
  35. 35.🌈 A resistor has the colour bands green, brown, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, brown, black. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands white, black, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands orange, brown, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3600 Ω resistor? (a) blue-orange-red (b) orange-blue-orange (c) orange-blue-brown (d) orange-blue-red
  40. 40.🌈 A resistor has the colour bands grey, yellow, brown. What is its value (in ohms)?

Answer key

  1. 1900
  2. green-yellow-red
  3. violet-yellow-black
  4. blue-brown-black
  5. 0
  6. the one nearest an end
  7. brown-brown-brown
  8. 1
  9. 3
  10. 53000
  11. 360
  12. 6
  13. 530
  14. 29
  15. 7
  16. 240
  17. 54000
  18. 25000
  19. 2
  20. brown-red-brown
  21. 4.8
  22. 5 %
  23. 26
  24. 470
  25. 77000
  26. 8.9
  27. 61000
  28. 94
  29. yellow-green-orange
  30. 5
  31. 62
  32. 510
  33. 47
  34. blue-violet-orange
  35. 5.1
  36. 41
  37. 90
  38. 31
  39. orange-blue-red
  40. 840

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