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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 439 · 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 yellow stand for?
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1700 Ω resistor? (a) brown-violet-brown (b) brown-violet-orange (c) brown-violet-red (d) violet-brown-red
  3. 3.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-red (b) white-brown-orange (c) brown-white-red (d) white-brown-brown
  4. 4.🌈 A resistor has the colour bands red, violet, black. What is its value (in ohms)?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 5 % (c) 0 % (d) 25 %
  6. 6.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands violet, blue, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands white, brown, red. What is its value (in ohms)?
  9. 9.🌈 In the resistor colour code, which number does violet stand for?
  10. 10.🌈 A resistor has the colour bands brown, brown, brown. What is its value (in ohms)?
  11. 11.🌈 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
  12. 12.🌈 In the resistor colour code, which number does grey stand for?
  13. 13.🌈 A resistor has the colour bands brown, brown, red. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands white, blue, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands blue, violet, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands brown, green, yellow. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 In the resistor colour code, which number does white stand for?
  18. 18.🌈 A resistor has the colour bands white, red, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1200 Ω resistor? (a) brown-red-red (b) brown-red-orange (c) brown-red-brown (d) red-brown-red
  20. 20.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands brown, red, black. What is its value (in ohms)?
  22. 22.🌈 A resistor has the colour bands orange, grey, red. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands grey, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, black, brown. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-yellow (b) yellow-orange-red (c) yellow-orange-orange (d) orange-yellow-orange
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 33 Ω resistor? (a) yellow-orange-black (b) orange-yellow-black (c) orange-orange-black (d) orange-orange-brown
  27. 27.🌈 A resistor has the colour bands green, red, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands blue, orange, orange. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands blue, black, yellow. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands orange, grey, black. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands violet, black, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) orange-red-orange (c) orange-red-red (d) red-orange-orange
  35. 35.🌈 In the resistor colour code, which number does green stand for?
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 67 Ω resistor? (a) violet-blue-black (b) violet-violet-black (c) blue-violet-brown (d) blue-violet-black
  37. 37.🌈 A resistor has the colour bands brown, grey, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-red (b) blue-black-orange (c) violet-blue-orange (d) blue-black-yellow
  39. 39.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands grey, yellow, red. What is its value in kilo-ohms (kΩ)? =

Answer key

  1. 4
  2. brown-violet-red
  3. white-brown-red
  4. 27
  5. 5 %
  6. 75000
  7. 76
  8. 9100
  9. 7
  10. 110
  11. the one nearest an end
  12. 8
  13. 1.1
  14. 9600
  15. 670
  16. 150
  17. 9
  18. 9.2
  19. brown-red-red
  20. 840
  21. 12
  22. 3.8
  23. 810
  24. 300
  25. yellow-orange-orange
  26. orange-orange-black
  27. 52
  28. 63000
  29. 750
  30. 600
  31. 41
  32. 38
  33. 70
  34. orange-red-orange
  35. 5
  36. blue-violet-black
  37. 18
  38. blue-black-orange
  39. 3.1
  40. 8.4

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