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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 564 · 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 gold band (b) the one nearest an end (c) the widest gap (d) any band
  2. 2.🌈 A resistor has the colour bands green, white, black. What is its value (in ohms)?
  3. 3.🌈 A resistor has the colour bands grey, black, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62 Ω resistor? (a) red-blue-black (b) violet-red-black (c) blue-red-brown (d) blue-red-black
  5. 5.🌈 In the resistor colour code, which number does yellow stand for?
  6. 6.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands brown, violet, brown. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 0 % (d) 5 %
  11. 11.🌈 In the resistor colour code, which number does blue stand for?
  12. 12.🌈 A resistor has the colour bands orange, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 500 Ω resistor? (a) green-black-red (b) blue-green-brown (c) green-black-black (d) green-black-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 150 Ω resistor? (a) brown-green-black (b) green-brown-brown (c) brown-green-red (d) brown-green-brown
  15. 15.🌈 A resistor has the colour bands yellow, orange, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9900 Ω resistor? (a) white-white-orange (b) white-white-brown (c) white-white-red (d) white-black-red
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11000 Ω resistor? (a) brown-brown-red (b) brown-brown-orange (c) brown-red-orange (d) brown-brown-yellow
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) brown-green-brown (b) green-brown-red (c) green-brown-brown (d) green-brown-black
  20. 20.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60 Ω resistor? (a) blue-black-brown (b) violet-blue-black (c) violet-black-black (d) blue-black-black
  21. 21.🌈 A resistor has the colour bands grey, green, orange. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands white, blue, black. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands white, green, brown. What is its value (in ohms)?
  26. 26.🌈 A resistor has the colour bands violet, brown, black. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands grey, violet, orange. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 A resistor has the colour bands blue, black, black. What is its value (in ohms)?
  29. 29.🌈 In the resistor colour code, which number does black stand for?
  30. 30.🌈 A resistor has the colour bands green, red, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, blue, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 300 Ω resistor? (a) orange-black-black (b) orange-black-red (c) orange-black-brown (d) yellow-orange-brown
  33. 33.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5500 Ω resistor? (a) green-green-brown (b) green-green-red (c) green-green-orange (d) green-blue-red
  34. 34.🌈 In the resistor colour code, which number does white stand for?
  35. 35.🌈 In the resistor colour code, which number does green stand for?
  36. 36.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46000 Ω resistor? (a) yellow-blue-orange (b) yellow-blue-red (c) yellow-blue-yellow (d) blue-yellow-orange
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 15000 Ω resistor? (a) brown-green-yellow (b) brown-green-red (c) brown-green-orange (d) green-brown-orange
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-brown-black (c) brown-red-black (d) red-red-black
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-brown (b) green-blue-black (c) yellow-blue-black (d) blue-yellow-black

Answer key

  1. the one nearest an end
  2. 59
  3. 800
  4. blue-red-black
  5. 4
  6. 970
  7. 170
  8. 55
  9. 500
  10. 5 %
  11. 6
  12. 360
  13. green-black-brown
  14. brown-green-brown
  15. 43
  16. 80
  17. white-white-red
  18. brown-brown-orange
  19. green-brown-brown
  20. blue-black-black
  21. 85
  22. 2.5
  23. 96
  24. 1300
  25. 950
  26. 71
  27. 87
  28. 60
  29. 0
  30. 5200
  31. 76000
  32. orange-black-brown
  33. green-green-red
  34. 9
  35. 5
  36. 4.8
  37. yellow-blue-orange
  38. brown-green-orange
  39. brown-red-black
  40. yellow-blue-black

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