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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 444 · 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.

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  1. 1.🌈 A resistor has the colour bands brown, orange, orange. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 7600 Ω resistor? (a) violet-blue-orange (b) violet-blue-red (c) violet-blue-brown (d) blue-violet-red
  3. 3.🌈 A resistor has the colour bands green, black, yellow. What is its value in kilo-ohms (kΩ)? =
  4. 4.🌈 In the resistor colour code, which number does yellow stand for?
  5. 5.🌈 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
  6. 6.🌈 A gold fourth band on a resistor means the value may be off by … (a) 50 % (b) 25 % (c) 5 % (d) 0 %
  7. 7.🌈 A resistor has the colour bands yellow, black, red. What is its value in kilo-ohms (kΩ)? =
  8. 8.🌈 A resistor has the colour bands green, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  9. 9.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 82000 Ω resistor? (a) grey-red-yellow (b) grey-red-red (c) grey-red-orange (d) red-grey-orange
  10. 10.🌈 A resistor has the colour bands brown, red, orange. What is its value (in ohms)?
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2300 Ω resistor? (a) red-orange-red (b) red-orange-orange (c) red-orange-brown (d) orange-red-red
  12. 12.🌈 In the resistor colour code, which number does violet stand for?
  13. 13.🌈 A resistor has the colour bands grey, blue, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 11 Ω resistor? (a) brown-brown-brown (b) brown-red-black (c) brown-brown-black (d) red-brown-black
  15. 15.🌈 A resistor has the colour bands grey, violet, brown. What is its value (in ohms)?
  16. 16.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 79 Ω resistor? (a) violet-white-black (b) violet-white-brown (c) grey-white-black (d) white-violet-black
  17. 17.🌈 A resistor has the colour bands blue, yellow, black. What is its value (in ohms)?
  18. 18.🌈 A resistor has the colour bands brown, grey, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 In the resistor colour code, which number does green stand for?
  20. 20.🌈 A resistor has the colour bands white, orange, orange. What is its value in kilo-ohms (kΩ)? =
  21. 21.🌈 A resistor has the colour bands red, black, brown. What is its value (in ohms)?
  22. 22.🌈 In the resistor colour code, which number does white stand for?
  23. 23.🌈 In the resistor colour code, which number does grey stand for?
  24. 24.🌈 A resistor has the colour bands red, red, red. What is its value in kilo-ohms (kΩ)? =
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 890 Ω resistor? (a) grey-white-red (b) grey-white-brown (c) grey-white-black (d) white-grey-brown
  26. 26.🌈 A resistor has the colour bands red, red, orange. What is its value (in ohms)?
  27. 27.🌈 A resistor has the colour bands yellow, blue, black. What is its value (in ohms)?
  28. 28.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 56000 Ω resistor? (a) green-blue-orange (b) green-blue-yellow (c) blue-green-orange (d) green-blue-red
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 860 Ω resistor? (a) grey-blue-brown (b) grey-blue-red (c) blue-grey-brown (d) grey-blue-black
  30. 30.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 18000 Ω resistor? (a) brown-grey-red (b) brown-grey-orange (c) brown-grey-yellow (d) grey-brown-orange
  31. 31.🌈 A resistor has the colour bands yellow, grey, red. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  33. 33.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  34. 34.🌈 A resistor has the colour bands orange, blue, red. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands white, violet, red. What is its value in kilo-ohms (kΩ)? =
  36. 36.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  37. 37.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 59000 Ω resistor? (a) green-white-orange (b) white-green-orange (c) green-white-yellow (d) green-white-red
  38. 38.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 12 Ω resistor? (a) brown-red-brown (b) red-red-black (c) brown-red-black (d) red-brown-black
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 86000 Ω resistor? (a) grey-blue-red (b) grey-blue-orange (c) blue-grey-orange (d) grey-blue-yellow
  40. 40.🌈 A resistor has the colour bands brown, blue, brown. What is its value (in ohms)?

Answer key

  1. 13
  2. violet-blue-red
  3. 500
  4. 4
  5. the one nearest an end
  6. 5 %
  7. 4
  8. 54
  9. grey-red-orange
  10. 12000
  11. red-orange-red
  12. 7
  13. 86
  14. brown-brown-black
  15. 870
  16. violet-white-black
  17. 64
  18. 1.8
  19. 5
  20. 93
  21. 200
  22. 9
  23. 8
  24. 2.2
  25. grey-white-brown
  26. 22000
  27. 46
  28. green-blue-orange
  29. grey-blue-brown
  30. brown-grey-orange
  31. 4.8
  32. 1.3
  33. 74000
  34. 3600
  35. 9.7
  36. 920
  37. green-white-orange
  38. brown-red-black
  39. grey-blue-orange
  40. 160

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