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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 347 · 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) any band (c) the widest gap (d) the one nearest an end
  2. 2.🌈 A resistor has the colour bands red, red, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does brown stand for?
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 A gold fourth band on a resistor means the value may be off by … (a) 0 % (b) 25 % (c) 50 % (d) 5 %
  6. 6.🌈 A resistor has the colour bands orange, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  7. 7.🌈 A resistor has the colour bands yellow, brown, orange. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 140 Ω resistor? (a) brown-yellow-red (b) brown-yellow-brown (c) brown-yellow-black (d) yellow-brown-brown
  10. 10.🌈 A resistor has the colour bands orange, black, yellow. What is its value in kilo-ohms (kΩ)? =
  11. 11.🌈 A resistor has the colour bands green, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 88 Ω resistor? (a) grey-grey-brown (b) grey-grey-black (c) white-grey-black (d) grey-white-black
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 60000 Ω resistor? (a) blue-black-yellow (b) violet-blue-orange (c) blue-black-orange (d) blue-black-red
  14. 14.🌈 A resistor has the colour bands white, brown, red. What is its value in kilo-ohms (kΩ)? =
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 43000 Ω resistor? (a) yellow-orange-red (b) orange-yellow-orange (c) yellow-orange-orange (d) yellow-orange-yellow
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83000 Ω resistor? (a) grey-orange-yellow (b) orange-grey-orange (c) grey-orange-red (d) grey-orange-orange
  17. 17.🌈 A resistor has the colour bands grey, brown, red. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79000 Ω resistor? (a) violet-white-red (b) violet-white-orange (c) violet-white-yellow (d) white-violet-orange
  19. 19.🌈 In the resistor colour code, which number does violet stand for?
  20. 20.🌈 A resistor has the colour bands orange, violet, red. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, yellow, brown. What is its value (in ohms)?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3700 Ω resistor? (a) orange-violet-red (b) violet-orange-red (c) orange-violet-orange (d) orange-violet-brown
  23. 23.🌈 A resistor has the colour bands grey, green, brown. What is its value (in ohms)?
  24. 24.🌈 A resistor has the colour bands grey, black, orange. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 A resistor has the colour bands brown, red, yellow. What is its value in kilo-ohms (kΩ)? =
  26. 26.🌈 In the resistor colour code, which number does green stand for?
  27. 27.🌈 In the resistor colour code, which number does grey stand for?
  28. 28.🌈 A resistor has the colour bands green, grey, black. What is its value (in ohms)?
  29. 29.🌈 A resistor has the colour bands orange, yellow, red. What is its value (in ohms)?
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-red (b) blue-grey-orange (c) grey-blue-yellow (d) grey-blue-orange
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 23000 Ω resistor? (a) red-orange-yellow (b) red-orange-red (c) orange-red-orange (d) red-orange-orange
  32. 32.🌈 A resistor has the colour bands blue, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands white, grey, black. What is its value (in ohms)?
  34. 34.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 64 Ω resistor? (a) blue-yellow-black (b) violet-yellow-black (c) yellow-blue-black (d) blue-yellow-brown
  35. 35.🌈 A resistor has the colour bands violet, red, yellow. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands white, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands brown, grey, red. What is its value (in ohms)?
  39. 39.🌈 A resistor has the colour bands blue, blue, red. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands red, orange, black. What is its value (in ohms)?

Answer key

  1. the one nearest an end
  2. 22
  3. 1
  4. 4
  5. 5 %
  6. 370
  7. 41
  8. 67
  9. brown-yellow-brown
  10. 300
  11. 570
  12. grey-grey-black
  13. blue-black-orange
  14. 9.1
  15. yellow-orange-orange
  16. grey-orange-orange
  17. 8.1
  18. violet-white-orange
  19. 7
  20. 3.7
  21. 240
  22. orange-violet-red
  23. 850
  24. 80
  25. 120
  26. 5
  27. 8
  28. 58
  29. 3400
  30. grey-blue-orange
  31. red-orange-orange
  32. 670
  33. 98
  34. blue-yellow-black
  35. 720
  36. 4.8
  37. 970
  38. 1800
  39. 6600
  40. 23

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