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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 391 · 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 gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 5 % (c) 0 % (d) 50 %
  2. 2.🌈 A resistor has the colour bands violet, orange, black. What is its value (in ohms)?
  3. 3.🌈 In the resistor colour code, which number does green stand for?
  4. 4.🌈 A resistor has the colour bands orange, brown, red. What is its value in kilo-ohms (kΩ)? =
  5. 5.🌈 In the resistor colour code, which number does orange stand for?
  6. 6.🌈 A resistor has the colour bands orange, black, orange. What is its value (in ohms)?
  7. 7.🌈 In the resistor colour code, which number does grey stand for?
  8. 8.🌈 A resistor has the colour bands orange, red, red. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 A resistor has the colour bands orange, black, orange. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 In the resistor colour code, which number does brown stand for?
  11. 11.🌈 A resistor has the colour bands grey, yellow, yellow. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 Which band is read first on a resistor? (a) any band (b) the one nearest an end (c) the widest gap (d) the gold band
  13. 13.🌈 A resistor has the colour bands blue, white, yellow. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  15. 15.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4200 Ω resistor? (a) yellow-red-red (b) yellow-red-orange (c) red-yellow-red (d) yellow-red-brown
  16. 16.🌈 A resistor has the colour bands violet, grey, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 58000 Ω resistor? (a) green-grey-yellow (b) green-grey-red (c) grey-green-orange (d) green-grey-orange
  18. 18.🌈 A resistor has the colour bands red, white, orange. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does black stand for?
  20. 20.🌈 In the resistor colour code, which number does red stand for?
  21. 21.🌈 A resistor has the colour bands brown, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 76000 Ω resistor? (a) violet-blue-red (b) blue-violet-orange (c) violet-blue-yellow (d) violet-blue-orange
  23. 23.🌈 A resistor has the colour bands brown, white, red. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands orange, orange, black. What is its value (in ohms)?
  25. 25.🌈 In the resistor colour code, which number does blue stand for?
  26. 26.🌈 A resistor has the colour bands brown, orange, red. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands white, green, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands grey, brown, orange. What is its value (in ohms)?
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 3100 Ω resistor? (a) orange-brown-brown (b) orange-brown-red (c) orange-brown-orange (d) brown-orange-red
  30. 30.🌈 A resistor has the colour bands yellow, black, black. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands violet, orange, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 19000 Ω resistor? (a) brown-white-yellow (b) white-brown-orange (c) brown-white-red (d) brown-white-orange
  33. 33.🌈 A resistor has the colour bands blue, brown, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands brown, white, orange. What is its value (in ohms)?
  35. 35.🌈 In the resistor colour code, which number does violet stand for?
  36. 36.🌈 A resistor has the colour bands violet, green, yellow. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands violet, grey, red. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 40000 Ω resistor? (a) yellow-black-yellow (b) green-yellow-orange (c) yellow-black-red (d) yellow-black-orange
  40. 40.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-brown (b) brown-red-red (c) brown-brown-orange (d) brown-brown-red

Answer key

  1. 5 %
  2. 73
  3. 5
  4. 3.1
  5. 3
  6. 30000
  7. 8
  8. 3.2
  9. 30
  10. 1
  11. 840
  12. the one nearest an end
  13. 690
  14. 12000
  15. yellow-red-red
  16. 7.8
  17. green-grey-orange
  18. 29
  19. 0
  20. 2
  21. 110
  22. violet-blue-orange
  23. 1.9
  24. 33
  25. 6
  26. 1300
  27. 95
  28. 81000
  29. orange-brown-red
  30. 40
  31. 7.3
  32. brown-white-orange
  33. 61000
  34. 19000
  35. 7
  36. 750
  37. 350
  38. 7800
  39. yellow-black-orange
  40. brown-brown-red

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