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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 666 · 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.🌈 A resistor has the colour bands orange, white, red. What is its value (in ohms)?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 46 Ω resistor? (a) yellow-blue-brown (b) yellow-blue-black (c) blue-yellow-black (d) green-blue-black
  3. 3.🌈 A resistor has the colour bands orange, violet, yellow. 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) 25 % (b) 0 % (c) 5 % (d) 50 %
  5. 5.🌈 In the resistor colour code, which number does white stand for?
  6. 6.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  7. 7.🌈 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
  8. 8.🌈 A resistor has the colour bands brown, orange, black. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does grey stand for?
  10. 10.🌈 A resistor has the colour bands red, brown, red. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 5000 Ω resistor? (a) green-black-brown (b) blue-green-red (c) green-black-red (d) green-black-orange
  12. 12.🌈 A resistor has the colour bands green, green, red. What is its value (in ohms)?
  13. 13.🌈 A resistor has the colour bands blue, red, brown. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands grey, blue, orange. What is its value (in ohms)?
  17. 17.🌈 In the resistor colour code, which number does green stand for?
  18. 18.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) red-orange-black (b) orange-red-black (c) red-red-black (d) red-red-brown
  20. 20.🌈 A resistor has the colour bands orange, yellow, brown. What is its value (in ohms)?
  21. 21.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-orange (b) grey-orange-yellow (c) orange-grey-orange (d) grey-orange-red
  22. 22.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  23. 23.🌈 A resistor has the colour bands violet, grey, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 In the resistor colour code, which number does brown stand for?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 31000 Ω resistor? (a) orange-brown-red (b) orange-brown-yellow (c) brown-orange-orange (d) orange-brown-orange
  26. 26.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 62000 Ω resistor? (a) red-blue-orange (b) blue-red-yellow (c) blue-red-red (d) blue-red-orange
  28. 28.🌈 A resistor has the colour bands white, brown, brown. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 210 Ω resistor? (a) brown-red-brown (b) red-brown-red (c) red-brown-brown (d) red-brown-black
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 690 Ω resistor? (a) blue-white-brown (b) blue-white-red (c) white-blue-brown (d) blue-white-black
  31. 31.🌈 A resistor has the colour bands white, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands grey, orange, black. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, black, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands grey, grey, orange. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 In the resistor colour code, which number does violet stand for?
  38. 38.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands white, yellow, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1600 Ω resistor? (a) brown-blue-brown (b) blue-brown-red (c) brown-blue-orange (d) brown-blue-red

Answer key

  1. 3900
  2. yellow-blue-black
  3. 370
  4. 5 %
  5. 9
  6. 10000
  7. the one nearest an end
  8. 13
  9. 8
  10. 2100
  11. green-black-red
  12. 5500
  13. 620
  14. 120
  15. 350
  16. 86000
  17. 5
  18. 690
  19. red-red-black
  20. 340
  21. grey-orange-orange
  22. 6600
  23. 780
  24. 1
  25. orange-brown-orange
  26. 41
  27. blue-red-orange
  28. 910
  29. red-brown-brown
  30. blue-white-brown
  31. 94
  32. 86
  33. 83
  34. 60000
  35. 76
  36. 88
  37. 7
  38. 33
  39. 9.4
  40. brown-blue-red

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