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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 777 · 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 brown, green, red. What is its value (in ohms)?
  2. 2.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 0 % (c) 25 % (d) 5 %
  3. 3.🌈 Which band is read first on a resistor? (a) the widest gap (b) the gold band (c) the one nearest an end (d) any band
  4. 4.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 4000 Ω resistor? (a) yellow-black-orange (b) yellow-black-red (c) green-yellow-red (d) yellow-black-brown
  5. 5.🌈 A resistor has the colour bands violet, red, brown. What is its value (in ohms)?
  6. 6.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 83 Ω resistor? (a) grey-orange-black (b) white-orange-black (c) orange-grey-black (d) grey-orange-brown
  7. 7.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7400 Ω resistor? (a) violet-yellow-brown (b) yellow-violet-red (c) violet-yellow-red (d) violet-yellow-orange
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41 Ω resistor? (a) yellow-brown-brown (b) yellow-brown-black (c) brown-yellow-black (d) green-brown-black
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 In the resistor colour code, which number does white stand for?
  11. 11.🌈 A resistor has the colour bands brown, white, black. What is its value (in ohms)?
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 720 Ω resistor? (a) violet-red-brown (b) red-violet-brown (c) violet-red-red (d) violet-red-black
  13. 13.🌈 A resistor has the colour bands green, violet, orange. What is its value (in ohms)?
  14. 14.🌈 A resistor has the colour bands grey, violet, red. What is its value (in ohms)?
  15. 15.🌈 A resistor has the colour bands violet, orange, brown. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands violet, brown, orange. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands white, blue, orange. What is its value (in ohms)?
  18. 18.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 99 Ω resistor? (a) white-black-black (b) white-white-brown (c) brown-white-black (d) white-white-black
  19. 19.🌈 A resistor has the colour bands violet, white, brown. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands grey, black, orange. What is its value (in ohms)?
  21. 21.🌈 In the resistor colour code, which number does brown stand for?
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) white-red-brown (b) white-red-red (c) white-red-orange (d) red-white-red
  23. 23.🌈 A resistor has the colour bands violet, brown, orange. What is its value (in ohms)?
  24. 24.🌈 In the resistor colour code, which number does black stand for?
  25. 25.🌈 In the resistor colour code, which number does grey stand for?
  26. 26.🌈 In the resistor colour code, which number does blue stand for?
  27. 27.🌈 A resistor has the colour bands grey, yellow, black. What is its value (in ohms)?
  28. 28.🌈 A resistor has the colour bands green, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  29. 29.🌈 A resistor has the colour bands brown, black, black. What is its value (in ohms)?
  30. 30.🌈 A resistor has the colour bands blue, grey, red. What is its value (in ohms)?
  31. 31.🌈 A resistor has the colour bands yellow, red, orange. What is its value (in ohms)?
  32. 32.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 36000 Ω resistor? (a) blue-orange-orange (b) orange-blue-yellow (c) orange-blue-red (d) orange-blue-orange
  33. 33.🌈 A resistor has the colour bands grey, green, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands blue, blue, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 A resistor has the colour bands violet, blue, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands red, violet, red. What is its value in kilo-ohms (kΩ)? =
  37. 37.🌈 A resistor has the colour bands green, violet, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 41000 Ω resistor? (a) yellow-brown-yellow (b) yellow-brown-red (c) brown-yellow-orange (d) yellow-brown-orange
  39. 39.🌈 A resistor has the colour bands grey, red, brown. What is its value (in ohms)?
  40. 40.🌈 A resistor has the colour bands violet, black, brown. What is its value (in ohms)?

Answer key

  1. 1500
  2. 5 %
  3. the one nearest an end
  4. yellow-black-red
  5. 720
  6. grey-orange-black
  7. violet-yellow-red
  8. yellow-brown-black
  9. 3
  10. 9
  11. 19
  12. violet-red-brown
  13. 57000
  14. 8700
  15. 730
  16. 71
  17. 96000
  18. white-white-black
  19. 790
  20. 80000
  21. 1
  22. white-red-red
  23. 71000
  24. 0
  25. 8
  26. 6
  27. 84
  28. 560
  29. 10
  30. 6800
  31. 42000
  32. orange-blue-orange
  33. 85000
  34. 660
  35. 760
  36. 2.7
  37. 57
  38. yellow-brown-orange
  39. 820
  40. 700

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