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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 618 · 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.🌈 In the resistor colour code, which number does brown stand for?
  2. 2.🌈 Which band is read first on a resistor? (a) the widest gap (b) any band (c) the one nearest an end (d) the gold band
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 A resistor has the colour bands blue, blue, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands green, white, red. What is its value (in ohms)?
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 5 % (d) 50 %
  7. 7.🌈 A resistor has the colour bands brown, orange, orange. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands white, grey, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands grey, orange, red. What is its value (in ohms)?
  12. 12.🌈 A resistor has the colour bands brown, black, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 39 Ω resistor? (a) orange-white-black (b) white-orange-black (c) yellow-white-black (d) orange-white-brown
  14. 14.🌈 A resistor has the colour bands violet, green, red. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52000 Ω resistor? (a) green-red-red (b) green-red-orange (c) red-green-orange (d) green-red-yellow
  16. 16.🌈 A resistor has the colour bands grey, blue, black. What is its value (in ohms)?
  17. 17.🌈 A resistor has the colour bands white, violet, brown. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands orange, green, brown. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-red (b) brown-white-red (c) white-brown-orange (d) white-brown-brown
  20. 20.🌈 A resistor has the colour bands brown, blue, black. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does grey stand for?
  22. 22.🌈 A resistor has the colour bands violet, blue, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 75 Ω resistor? (a) grey-green-black (b) violet-green-brown (c) green-violet-black (d) violet-green-black
  24. 24.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4900 Ω resistor? (a) yellow-white-red (b) white-yellow-red (c) yellow-white-brown (d) yellow-white-orange
  25. 25.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 In the resistor colour code, which number does green stand for?
  28. 28.🌈 A resistor has the colour bands grey, white, orange. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29 Ω resistor? (a) red-white-brown (b) white-red-black (c) red-white-black (d) orange-white-black
  30. 30.🌈 A resistor has the colour bands white, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands grey, orange, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands green, green, orange. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands green, green, black. What is its value (in ohms)?
  34. 34.🌈 In the resistor colour code, which number does violet stand for?
  35. 35.🌈 A resistor has the colour bands brown, green, black. What is its value (in ohms)?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 6100 Ω resistor? (a) blue-brown-red (b) blue-brown-orange (c) blue-brown-brown (d) brown-blue-red
  37. 37.🌈 A resistor has the colour bands violet, violet, black. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands violet, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 22 Ω resistor? (a) orange-red-black (b) red-red-brown (c) red-orange-black (d) red-red-black

Answer key

  1. 1
  2. the one nearest an end
  3. 0
  4. 66000
  5. 5900
  6. 5 %
  7. 13000
  8. 150
  9. 9.8
  10. 3.7
  11. 8300
  12. 10
  13. orange-white-black
  14. 7500
  15. green-red-orange
  16. 86
  17. 970
  18. 350
  19. white-brown-red
  20. 16
  21. 8
  22. 7.6
  23. violet-green-black
  24. yellow-white-red
  25. 12000
  26. 6
  27. 5
  28. 89
  29. red-white-black
  30. 900
  31. 8.3
  32. 55
  33. 55
  34. 7
  35. 15
  36. blue-brown-red
  37. 77
  38. 58
  39. 74
  40. red-red-black

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